157407040 has 56 divisors (see below), whose sum is σ = 428378112. Its totient is φ = 53967360.

The previous prime is 157407037. The next prime is 157407059. The reversal of 157407040 is 40704751.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32896 + ... + 37375.

Almost surely, 2^157407040 is an apocalyptic number.

157407040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157407040 is an abundant number, since it is smaller than the sum of its proper divisors (270971072).

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

157407040 is an equidigital number, since it uses as much as digits as its factorization.

157407040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70295 (or 70285 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 157407040 is about 12546.1962363100. The cubic root of 157407040 is about 539.9348801217.

The spelling of 157407040 in words is "one hundred fifty-seven million, four hundred seven thousand, forty".