157693040 has 40 divisors (see below), whose sum is σ = 375170928. Its totient is φ = 61608960.

The previous prime is 157693033. The next prime is 157693049. The reversal of 157693040 is 40396751.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157693049) 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, 19481 + ... + 26360.

Almost surely, 2^157693040 is an apocalyptic number.

157693040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157693040 is an abundant number, since it is smaller than the sum of its proper divisors (217477888).

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

157693040 is a wasteful number, since it uses less digits than its factorization.

157693040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45897 (or 45891 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 157693040 is about 12557.5889405570. The cubic root of 157693040 is about 540.2616930033.

The spelling of 157693040 in words is "one hundred fifty-seven million, six hundred ninety-three thousand, forty".