158423632 has 20 divisors (see below), whose sum is σ = 320292000. Its totient is φ = 75767648.

The previous prime is 158423623. The next prime is 158423633. The reversal of 158423632 is 236324851.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158423633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214882 + ... + 215617.

It is an arithmetic number, because the mean of its divisors is an integer number (16014600).

Almost surely, 2^158423632 is an apocalyptic number.

It is an amenable number.

158423632 is an abundant number, since it is smaller than the sum of its proper divisors (161868368).

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

158423632 is a wasteful number, since it uses less digits than its factorization.

158423632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430530 (or 430524 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 158423632 is about 12586.6449858570. The cubic root of 158423632 is about 541.0947521111.

The spelling of 158423632 in words is "one hundred fifty-eight million, four hundred twenty-three thousand, six hundred thirty-two".