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1408144398 = 23234690733
BaseRepresentation
bin101001111101110…
…1001010000001110
310122010200010222020
41103323221100032
510340441110043
6351421231010
746616013153
oct12373512016
93563603866
101408144398
11662951801
12333702466
1319597084b
14d503222a
1583952e83
hex53ee940e

1408144398 has 8 divisors (see below), whose sum is σ = 2816288808. Its totient is φ = 469381464.

The previous prime is 1408144379. The next prime is 1408144417. The reversal of 1408144398 is 8934418041.

1408144398 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1408144379) and next prime (1408144417).

It is a sphenic number, since it is the product of 3 distinct primes.

1408144398 is an admirable number.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117345361 + ... + 117345372.

It is an arithmetic number, because the mean of its divisors is an integer number (352036101).

Almost surely, 21408144398 is an apocalyptic number.

1408144398 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1408144398 is a wasteful number, since it uses less digits than its factorization.

1408144398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234690738.

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 1408144398 is about 37525.2501390730. The cubic root of 1408144398 is about 1120.8540461868.

The spelling of 1408144398 in words is "one billion, four hundred eight million, one hundred forty-four thousand, three hundred ninety-eight".

Divisors: 1 2 3 6 234690733 469381466 704072199 1408144398