813866350 has 24 divisors (see below), whose sum is σ = 1651409928. Its totient is φ = 295951200.

The previous prime is 813866329. The next prime is 813866369. The reversal of 813866350 is 53668318.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 739329 + ... + 740428.

It is an arithmetic number, because the mean of its divisors is an integer number (68808747).

Almost surely, 2^813866350 is an apocalyptic number.

813866350 is an abundant number, since it is smaller than the sum of its proper divisors (837543578).

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

813866350 is a wasteful number, since it uses less digits than its factorization.

813866350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479780 (or 1479775 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 813866350 is about 28528.3429241868. The cubic root of 813866350 is about 933.6505646411.

The spelling of 813866350 in words is "eight hundred thirteen million, eight hundred sixty-six thousand, three hundred fifty".