815046988 has 18 divisors (see below), whose sum is σ = 1659203196. Its totient is φ = 349305768.

The previous prime is 815046979. The next prime is 815047003. The reversal of 815046988 is 889640518.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2079006 + ... + 2079397.

Almost surely, 2^815046988 is an apocalyptic number.

It is an amenable number.

815046988 is an abundant number, since it is smaller than the sum of its proper divisors (844156208).

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

815046988 is a wasteful number, since it uses less digits than its factorization.

815046988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4158421 (or 4158412 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 49.

The square root of 815046988 is about 28549.0277943050. The cubic root of 815046988 is about 934.1018143025.

The spelling of 815046988 in words is "eight hundred fifteen million, forty-six thousand, nine hundred eighty-eight".