815474682 has 64 divisors (see below), whose sum is σ = 1981670400. Its totient is φ = 246518640.

The previous prime is 815474669. The next prime is 815474741. The reversal of 815474682 is 286474518.

It is a super-2 number, since 2×815474682² = 1329997913966002248, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 287869 + ... + 290687.

It is an arithmetic number, because the mean of its divisors is an integer number (30963600).

Almost surely, 2^815474682 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 815474682, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (990835200).

815474682 is an abundant number, since it is smaller than the sum of its proper divisors (1166195718).

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

815474682 is a wasteful number, since it uses less digits than its factorization.

815474682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3328 (or 3322 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 815474682 is about 28556.5173296745. The cubic root of 815474682 is about 934.2651749786.

The spelling of 815474682 in words is "eight hundred fifteen million, four hundred seventy-four thousand, six hundred eighty-two".