815342828 has 6 divisors (see below), whose sum is σ = 1426849956. Its totient is φ = 407671412.

The previous prime is 815342813. The next prime is 815342849. The reversal of 815342828 is 828243518.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 101917850 + ... + 101917857.

It is an arithmetic number, because the mean of its divisors is an integer number (237808326).

Almost surely, 2^815342828 is an apocalyptic number.

It is an amenable number.

815342828 is a deficient number, since it is larger than the sum of its proper divisors (611507128).

815342828 is a wasteful number, since it uses less digits than its factorization.

815342828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203835711 (or 203835709 counting only the distinct ones).

The product of its digits is 122880, while the sum is 41.

The square root of 815342828 is about 28554.2085864764. The cubic root of 815342828 is about 934.2148185245.

The spelling of 815342828 in words is "eight hundred fifteen million, three hundred forty-two thousand, eight hundred twenty-eight".