76440404 has 12 divisors (see below), whose sum is σ = 138383700. Its totient is φ = 36902208.

The previous prime is 76440391. The next prime is 76440421. The reversal of 76440404 is 40404467.

It can be written as a sum of positive squares in 2 ways, for example, as 50410000 + 26030404 = 7100^2 + 5102^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329369 + ... + 329600.

It is an arithmetic number, because the mean of its divisors is an integer number (11531975).

Almost surely, 2^76440404 is an apocalyptic number.

It is an amenable number.

76440404 is a deficient number, since it is larger than the sum of its proper divisors (61943296).

76440404 is a wasteful number, since it uses less digits than its factorization.

76440404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659002 (or 659000 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 76440404 is about 8743.0203019323. The cubic root of 76440404 is about 424.3989732778.

The spelling of 76440404 in words is "seventy-six million, four hundred forty thousand, four hundred four".