807156394 has 24 divisors (see below), whose sum is σ = 1335722724. Its totient is φ = 365534400.

The previous prime is 807156377. The next prime is 807156407. The reversal of 807156394 is 493651708.

It can be written as a sum of positive squares in 2 ways, for example, as 797328169 + 9828225 = 28237^2 + 3135^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 807156394.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61014 + ... + 73054.

Almost surely, 2^807156394 is an apocalyptic number.

807156394 is a deficient number, since it is larger than the sum of its proper divisors (528566330).

807156394 is a wasteful number, since it uses less digits than its factorization.

807156394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12342 (or 12331 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 807156394 is about 28410.4979541014. The cubic root of 807156394 is about 931.0776400736.

The spelling of 807156394 in words is "eight hundred seven million, one hundred fifty-six thousand, three hundred ninety-four".