157659240 has 32 divisors (see below), whose sum is σ = 472978080. Its totient is φ = 42042432.

The previous prime is 157659233. The next prime is 157659301. The reversal of 157659240 is 42956751.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

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, 656794 + ... + 657033.

It is an arithmetic number, because the mean of its divisors is an integer number (14780565).

Almost surely, 2^157659240 is an apocalyptic number.

157659240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157659240 is an abundant number, since it is smaller than the sum of its proper divisors (315318840).

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

157659240 is a wasteful number, since it uses less digits than its factorization.

157659240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313841 (or 1313837 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 157659240 is about 12556.2430686890. The cubic root of 157659240 is about 540.2230902637.

The spelling of 157659240 in words is "one hundred fifty-seven million, six hundred fifty-nine thousand, two hundred forty".