158316420 has 24 divisors (see below), whose sum is σ = 443286144. Its totient is φ = 42217696.

The previous prime is 158316409. The next prime is 158316421. The reversal of 158316420 is 24613851.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (158316421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1319244 + ... + 1319363.

It is an arithmetic number, because the mean of its divisors is an integer number (18470256).

Almost surely, 2^158316420 is an apocalyptic number.

158316420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158316420 is an abundant number, since it is smaller than the sum of its proper divisors (284969724).

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

158316420 is a wasteful number, since it uses less digits than its factorization.

158316420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2638619 (or 2638617 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 158316420 is about 12582.3853064512. The cubic root of 158316420 is about 540.9726639666.

The spelling of 158316420 in words is "one hundred fifty-eight million, three hundred sixteen thousand, four hundred twenty".