816814130 has 48 divisors (see below), whose sum is σ = 1711183320. Its totient is φ = 279544320.

The previous prime is 816814129. The next prime is 816814151. The reversal of 816814130 is 31418618.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 812307001 + 4507129 = 28501^2 + 2123^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 716 + ... + 40424.

Almost surely, 2^816814130 is an apocalyptic number.

816814130 is an abundant number, since it is smaller than the sum of its proper divisors (894369190).

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

816814130 is a wasteful number, since it uses less digits than its factorization.

816814130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39755 (or 39744 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 816814130 is about 28579.9602868863. The cubic root of 816814130 is about 934.7764171280.

The spelling of 816814130 in words is "eight hundred sixteen million, eight hundred fourteen thousand, one hundred thirty".