157932840 has 128 divisors (see below), whose sum is σ = 527990400. Its totient is φ = 37524480.

The previous prime is 157932829. The next prime is 157932847. The reversal of 157932840 is 48239751.

157932840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (157932847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43495 + ... + 46985.

It is an arithmetic number, because the mean of its divisors is an integer number (4124925).

Almost surely, 2^157932840 is an apocalyptic number.

157932840 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 157932840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263995200).

157932840 is an abundant number, since it is smaller than the sum of its proper divisors (370057560).

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

157932840 is a wasteful number, since it uses less digits than its factorization.

157932840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3547 (or 3543 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 157932840 is about 12567.1333246688. The cubic root of 157932840 is about 540.5354086116.

The spelling of 157932840 in words is "one hundred fifty-seven million, nine hundred thirty-two thousand, eight hundred forty".