158439828 has 12 divisors (see below), whose sum is σ = 369692960. Its totient is φ = 52813272.

The previous prime is 158439817. The next prime is 158439829. The reversal of 158439828 is 828934851.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158439829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6601648 + ... + 6601671.

Almost surely, 2^158439828 is an apocalyptic number.

It is an amenable number.

158439828 is an abundant number, since it is smaller than the sum of its proper divisors (211253132).

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

158439828 is a wasteful number, since it uses less digits than its factorization.

158439828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13203326 (or 13203324 counting only the distinct ones).

The product of its digits is 552960, while the sum is 48.

The square root of 158439828 is about 12587.2883497598. The cubic root of 158439828 is about 541.1131905892.

The spelling of 158439828 in words is "one hundred fifty-eight million, four hundred thirty-nine thousand, eight hundred twenty-eight".