158474232 has 320 divisors, whose sum is σ = 557568000. Its totient is φ = 41912640.

The previous prime is 158474213. The next prime is 158474233. The reversal of 158474232 is 232474851.

It is a happy number.

158474232 is a `hidden beast` number, since 1 + 584 + 7 + 42 + 32 = 666.

It is a super-2 number, since 2×158474232² = 50228164415979648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158474233) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5112057 + ... + 5112087.

It is an arithmetic number, because the mean of its divisors is an integer number (1742400).

Almost surely, 2^158474232 is an apocalyptic number.

158474232 is a gapful number since it is divisible by the number (12) 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 158474232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278784000).

158474232 is an abundant number, since it is smaller than the sum of its proper divisors (399093768).

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

158474232 is a wasteful number, since it uses less digits than its factorization.

158474232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 66 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 158474232 is about 12588.6548924021. The cubic root of 158474232 is about 541.1523539551.

The spelling of 158474232 in words is "one hundred fifty-eight million, four hundred seventy-four thousand, two hundred thirty-two".