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398468361 = 3196990673
BaseRepresentation
bin10111110000000…
…010010100001001
31000202210021211110
4113300002110021
51304001441421
6103312320533
712605632224
oct2760022411
91022707743
10398468361
11194a1a1a5
12b1543149
13647263c5
143acc65bb
1524eaea76
hex17c02509

398468361 has 8 divisors (see below), whose sum is σ = 559253920. Its totient is φ = 251664192.

The previous prime is 398468351. The next prime is 398468417. The reversal of 398468361 is 163864893.

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

It is not a de Polignac number, because 398468361 - 27 = 398468233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 398468361.

It is not an unprimeable number, because it can be changed into a prime (398468351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3495280 + ... + 3495393.

It is an arithmetic number, because the mean of its divisors is an integer number (69906740).

Almost surely, 2398468361 is an apocalyptic number.

It is an amenable number.

398468361 is a deficient number, since it is larger than the sum of its proper divisors (160785559).

398468361 is a wasteful number, since it uses less digits than its factorization.

398468361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6990695.

The product of its digits is 746496, while the sum is 48.

The square root of 398468361 is about 19961.6722996847. The cubic root of 398468361 is about 735.8646624430.

The spelling of 398468361 in words is "three hundred ninety-eight million, four hundred sixty-eight thousand, three hundred sixty-one".

Divisors: 1 3 19 57 6990673 20972019 132822787 398468361