1368453408 has 96 divisors (see below), whose sum is σ = 4126598784. Its totient is φ = 388964352.

The previous prime is 1368453377. The next prime is 1368453413. The reversal of 1368453408 is 8043548631.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 1368453408.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 127216 + ... + 137552.

It is an arithmetic number, because the mean of its divisors is an integer number (42985404).

Almost surely, 2^1368453408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1368453408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2063299392).

1368453408 is an abundant number, since it is smaller than the sum of its proper divisors (2758145376).

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

1368453408 is a wasteful number, since it uses less digits than its factorization.

1368453408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10554 (or 10546 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The square root of 1368453408 is about 36992.6128841962. The cubic root of 1368453408 is about 1110.2224503441. Note that the first 3 decimals are identical.

The spelling of 1368453408 in words is "one billion, three hundred sixty-eight million, four hundred fifty-three thousand, four hundred eight".