158807728 has 20 divisors (see below), whose sum is σ = 308113960. Its totient is φ = 79294464.

The previous prime is 158807717. The next prime is 158807731. The reversal of 158807728 is 827708851.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5851 + ... + 18757.

It is an arithmetic number, because the mean of its divisors is an integer number (15405698).

Almost surely, 2^158807728 is an apocalyptic number.

It is an amenable number.

158807728 is a deficient number, since it is larger than the sum of its proper divisors (149306232).

158807728 is a wasteful number, since it uses less digits than its factorization.

158807728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13684 (or 13678 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 46.

The square root of 158807728 is about 12601.8938259295. The cubic root of 158807728 is about 541.5316915393.

The spelling of 158807728 in words is "one hundred fifty-eight million, eight hundred seven thousand, seven hundred twenty-eight".