158818428 has 48 divisors (see below), whose sum is σ = 412572160. Its totient is φ = 52834032.

The previous prime is 158818399. The next prime is 158818447. The reversal of 158818428 is 824818851.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 68301 + ... + 70587.

Almost surely, 2^158818428 is an apocalyptic number.

158818428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

158818428 is an abundant number, since it is smaller than the sum of its proper divisors (253753732).

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

158818428 is a wasteful number, since it uses less digits than its factorization.

158818428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2943 (or 2935 counting only the distinct ones).

The product of its digits is 163840, while the sum is 45.

The square root of 158818428 is about 12602.3183581435. The cubic root of 158818428 is about 541.5438535397.

The spelling of 158818428 in words is "one hundred fifty-eight million, eight hundred eighteen thousand, four hundred twenty-eight".