157901340 has 24 divisors (see below), whose sum is σ = 442123920. Its totient is φ = 42107008.

The previous prime is 157901251. The next prime is 157901347. The reversal of 157901340 is 43109751.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 157901298 and 157901307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157901347) 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, 1315785 + ... + 1315904.

It is an arithmetic number, because the mean of its divisors is an integer number (18421830).

Almost surely, 2^157901340 is an apocalyptic number.

157901340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157901340 is an abundant number, since it is smaller than the sum of its proper divisors (284222580).

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

157901340 is a wasteful number, since it uses less digits than its factorization.

157901340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2631701 (or 2631699 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 157901340 is about 12565.8799930606. The cubic root of 157901340 is about 540.4994692898.

The spelling of 157901340 in words is "one hundred fifty-seven million, nine hundred one thousand, three hundred forty".