157371440 has 40 divisors (see below), whose sum is σ = 367007760. Its totient is φ = 62756096.

The previous prime is 157371439. The next prime is 157371457. The reversal of 157371440 is 44173751.

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

It is a junction number, because it is equal to n+sod(n) for n = 157371397 and 157371406.

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, 24926 + ... + 30594.

It is an arithmetic number, because the mean of its divisors is an integer number (9175194).

Almost surely, 2^157371440 is an apocalyptic number.

157371440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157371440 is an abundant number, since it is smaller than the sum of its proper divisors (209636320).

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

157371440 is a wasteful number, since it uses less digits than its factorization.

157371440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6029 (or 6023 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 157371440 is about 12544.7773993802. Note that the first 3 decimals coincide. The cubic root of 157371440 is about 539.8941722199.

The spelling of 157371440 in words is "one hundred fifty-seven million, three hundred seventy-one thousand, four hundred forty".