158316940 has 12 divisors (see below), whose sum is σ = 332465616. Its totient is φ = 63326768.

The previous prime is 158316931. The next prime is 158316943. The reversal of 158316940 is 49613851.

It is a self number, because there is not a number n which added to its sum of digits gives 158316940.

It is not an unprimeable number, because it can be changed into a prime (158316943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3957904 + ... + 3957943.

It is an arithmetic number, because the mean of its divisors is an integer number (27705468).

Almost surely, 2^158316940 is an apocalyptic number.

158316940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158316940 is an abundant number, since it is smaller than the sum of its proper divisors (174148676).

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

158316940 is a wasteful number, since it uses less digits than its factorization.

158316940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7915856 (or 7915854 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 158316940 is about 12582.4059702427. The cubic root of 158316940 is about 540.9732562519.

The spelling of 158316940 in words is "one hundred fifty-eight million, three hundred sixteen thousand, nine hundred forty".