158604992 has 112 divisors (see below), whose sum is σ = 392411712. Its totient is φ = 61931520.

The previous prime is 158604961. The next prime is 158605003. The reversal of 158604992 is 299406851.

It is a tau number, because it is divible by the number of its divisors (112).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 657992 + ... + 658232.

It is an arithmetic number, because the mean of its divisors is an integer number (3503676).

Almost surely, 2^158604992 is an apocalyptic number.

158604992 is the 10283-rd pentagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158604992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196205856).

158604992 is an abundant number, since it is smaller than the sum of its proper divisors (233806720).

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

158604992 is a wasteful number, since it uses less digits than its factorization.

158604992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 158604992 is about 12593.8473867202. The cubic root of 158604992 is about 541.3011512869.

The spelling of 158604992 in words is "one hundred fifty-eight million, six hundred four thousand, nine hundred ninety-two".