816338970 has 48 divisors (see below), whose sum is σ = 2130047712. Its totient is φ = 216914400.

The previous prime is 816338969. The next prime is 816338981. The reversal of 816338970 is 79833618.

It is a happy number.

816338970 is a `hidden beast` number, since 8 + 1 + 633 + 8 + 9 + 7 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 23 ways as a sum of consecutive naturals, for example, 9445 + ... + 41495.

It is an arithmetic number, because the mean of its divisors is an integer number (44375994).

Almost surely, 2^816338970 is an apocalyptic number.

816338970 is an abundant number, since it is smaller than the sum of its proper divisors (1313708742).

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

816338970 is a wasteful number, since it uses less digits than its factorization.

816338970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32347 (or 32344 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 816338970 is about 28571.6462598850. The cubic root of 816338970 is about 934.5951214894.

The spelling of 816338970 in words is "eight hundred sixteen million, three hundred thirty-eight thousand, nine hundred seventy".