157840372 has 24 divisors (see below), whose sum is σ = 298622240. Its totient is φ = 72744480.

The previous prime is 157840363. The next prime is 157840373. The reversal of 157840372 is 273048751.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157840373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25254 + ... + 30877.

Almost surely, 2^157840372 is an apocalyptic number.

It is an amenable number.

157840372 is a deficient number, since it is larger than the sum of its proper divisors (140781868).

157840372 is a wasteful number, since it uses less digits than its factorization.

157840372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56191 (or 56189 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 157840372 is about 12563.4538244863. The cubic root of 157840372 is about 540.4298954369.

The spelling of 157840372 in words is "one hundred fifty-seven million, eight hundred forty thousand, three hundred seventy-two".