156791040 has 288 divisors, whose sum is σ = 604369920. Its totient is φ = 33841152.

The previous prime is 156791009. The next prime is 156791071. The reversal of 156791040 is 40197651.

156791040 is digitally balanced in base 3, 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 (156791009) and next prime (156791071).

It is a junction number, because it is equal to n+sod(n) for n = 156790992 and 156791010.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 510567 + ... + 510873.

Almost surely, 2^156791040 is an apocalyptic number.

156791040 is a gapful number since it is divisible by the number (10) 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 156791040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302184960).

156791040 is an abundant number, since it is smaller than the sum of its proper divisors (447578880).

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

156791040 is a wasteful number, since it uses less digits than its factorization.

156791040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357 (or 343 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 156791040 is about 12521.6228980113. The cubic root of 156791040 is about 539.2296285233.

The spelling of 156791040 in words is "one hundred fifty-six million, seven hundred ninety-one thousand, forty".