158451438 has 16 divisors (see below), whose sum is σ = 317041920. Its totient is φ = 52793976.

The previous prime is 158451421. The next prime is 158451467. The reversal of 158451438 is 834154851.

It is a junction number, because it is equal to n+sod(n) for n = 158451396 and 158451405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14481 + ... + 22947.

It is an arithmetic number, because the mean of its divisors is an integer number (19815120).

Almost surely, 2^158451438 is an apocalyptic number.

158451438 is an abundant number, since it is smaller than the sum of its proper divisors (158590482).

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

158451438 is a wasteful number, since it uses less digits than its factorization.

158451438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11591.

The product of its digits is 76800, while the sum is 39.

The square root of 158451438 is about 12587.7495208635. The cubic root of 158451438 is about 541.1264073222.

The spelling of 158451438 in words is "one hundred fifty-eight million, four hundred fifty-one thousand, four hundred thirty-eight".