158328972 has 48 divisors (see below), whose sum is σ = 411744480. Its totient is φ = 52614144.

The previous prime is 158328959. The next prime is 158328979. The reversal of 158328972 is 279823851.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (158328979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36048 + ... + 40200.

It is an arithmetic number, because the mean of its divisors is an integer number (8578010).

Almost surely, 2^158328972 is an apocalyptic number.

158328972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

158328972 is an abundant number, since it is smaller than the sum of its proper divisors (253415508).

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

158328972 is a wasteful number, since it uses less digits than its factorization.

158328972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4519 (or 4511 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 158328972 is about 12582.8840891109. The cubic root of 158328972 is about 540.9869604610.

The spelling of 158328972 in words is "one hundred fifty-eight million, three hundred twenty-eight thousand, nine hundred seventy-two".