764992142 has 16 divisors (see below), whose sum is σ = 1170560160. Its totient is φ = 374823072.

The previous prime is 764992141. The next prime is 764992211. The reversal of 764992142 is 241299467.

It is a junction number, because it is equal to n+sod(n) for n = 764992093 and 764992102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764992141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93488 + ... + 101340.

It is an arithmetic number, because the mean of its divisors is an integer number (73160010).

Almost surely, 2^764992142 is an apocalyptic number.

764992142 is a deficient number, since it is larger than the sum of its proper divisors (405568018).

764992142 is a wasteful number, since it uses less digits than its factorization.

764992142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8827.

The product of its digits is 217728, while the sum is 44.

The square root of 764992142 is about 27658.4913182191. The cubic root of 764992142 is about 914.5742958851.

The spelling of 764992142 in words is "seven hundred sixty-four million, nine hundred ninety-two thousand, one hundred forty-two".