1156497408 has 360 divisors, whose sum is σ = 3925748736. Its totient is φ = 324403200.

The previous prime is 1156497383. The next prime is 1156497413. The reversal of 1156497408 is 8047946511.

1156497408 is a `hidden beast` number, since 1 + 156 + 4 + 97 + 408 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37306353 + ... + 37306383.

Almost surely, 2^1156497408 is an apocalyptic number.

1156497408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1156497408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1962874368).

1156497408 is an abundant number, since it is smaller than the sum of its proper divisors (2769251328).

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

1156497408 is a wasteful number, since it uses less digits than its factorization.

1156497408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 1156497408 is about 34007.3140368363. The cubic root of 1156497408 is about 1049.6589695205.

The spelling of 1156497408 in words is "one billion, one hundred fifty-six million, four hundred ninety-seven thousand, four hundred eight".