158728032 has 48 divisors (see below), whose sum is σ = 462959280. Its totient is φ = 52909056.

The previous prime is 158728027. The next prime is 158728043. The reversal of 158728032 is 230827851.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90993 + ... + 92720.

It is an arithmetic number, because the mean of its divisors is an integer number (9644985).

Almost surely, 2^158728032 is an apocalyptic number.

158728032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

158728032 is an abundant number, since it is smaller than the sum of its proper divisors (304231248).

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

158728032 is a wasteful number, since it uses less digits than its factorization.

158728032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183732 (or 183718 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 158728032 is about 12598.7313647049. The cubic root of 158728032 is about 541.4410890401.

The spelling of 158728032 in words is "one hundred fifty-eight million, seven hundred twenty-eight thousand, thirty-two".