815379028 has 12 divisors (see below), whose sum is σ = 1430321760. Its totient is φ = 406715672.

The previous prime is 815379023. The next prime is 815379031. The reversal of 815379028 is 820973518.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (815379023) 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, 241576 + ... + 244927.

It is an arithmetic number, because the mean of its divisors is an integer number (119193480).

Almost surely, 2^815379028 is an apocalyptic number.

It is an amenable number.

815379028 is a deficient number, since it is larger than the sum of its proper divisors (614942732).

815379028 is a wasteful number, since it uses less digits than its factorization.

815379028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486926 (or 486924 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 815379028 is about 28554.8424614810. The cubic root of 815379028 is about 934.2286442326.

The spelling of 815379028 in words is "eight hundred fifteen million, three hundred seventy-nine thousand, twenty-eight".