158400492 has 48 divisors (see below), whose sum is σ = 411949440. Its totient is φ = 47077632.

The previous prime is 158400491. The next prime is 158400499. The reversal of 158400492 is 294004851.

It is not an unprimeable number, because it can be changed into a prime (158400491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16558 + ... + 24309.

It is an arithmetic number, because the mean of its divisors is an integer number (8582280).

Almost surely, 2^158400492 is an apocalyptic number.

158400492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

158400492 is an abundant number, since it is smaller than the sum of its proper divisors (253548948).

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

158400492 is a wasteful number, since it uses less digits than its factorization.

158400492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40910 (or 40908 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 158400492 is about 12585.7257240097. The cubic root of 158400492 is about 541.0684059950.

The spelling of 158400492 in words is "one hundred fifty-eight million, four hundred thousand, four hundred ninety-two".