158758920 has 128 divisors (see below), whose sum is σ = 560390400. Its totient is φ = 39840768.

The previous prime is 158758909. The next prime is 158758973. The reversal of 158758920 is 29857851.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14037 + ... + 22683.

It is an arithmetic number, because the mean of its divisors is an integer number (4378050).

Almost surely, 2^158758920 is an apocalyptic number.

158758920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158758920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280195200).

158758920 is an abundant number, since it is smaller than the sum of its proper divisors (401631480).

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

158758920 is a wasteful number, since it uses less digits than its factorization.

158758920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8684 (or 8674 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 45.

The square root of 158758920 is about 12599.9571427843. The cubic root of 158758920 is about 541.4762077007.

The spelling of 158758920 in words is "one hundred fifty-eight million, seven hundred fifty-eight thousand, nine hundred twenty".