159724940 has 24 divisors (see below), whose sum is σ = 335670720. Its totient is φ = 63842688.

The previous prime is 159724921. The next prime is 159724991. The reversal of 159724940 is 49427951.

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, 39869 + ... + 43691.

It is an arithmetic number, because the mean of its divisors is an integer number (13986280).

Almost surely, 2^159724940 is an apocalyptic number.

159724940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159724940 is an abundant number, since it is smaller than the sum of its proper divisors (175945780).

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

159724940 is a wasteful number, since it uses less digits than its factorization.

159724940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5921 (or 5919 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 159724940 is about 12638.2332626044. The cubic root of 159724940 is about 542.5722499992.

The spelling of 159724940 in words is "one hundred fifty-nine million, seven hundred twenty-four thousand, nine hundred forty".