76704440 has 32 divisors (see below), whose sum is σ = 176798160. Its totient is φ = 29932800.

The previous prime is 76704431. The next prime is 76704443. The reversal of 76704440 is 4440767.

It is a super-2 number, since 2×76704440² = 11767142231427200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 76704397 and 76704406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76704443) 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, 21746 + ... + 25025.

Almost surely, 2^76704440 is an apocalyptic number.

It is an amenable number.

76704440 is an abundant number, since it is smaller than the sum of its proper divisors (100093720).

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

76704440 is a wasteful number, since it uses less digits than its factorization.

76704440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46823 (or 46819 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 76704440 is about 8758.1071014232. The cubic root of 76704440 is about 424.8870564932.

The spelling of 76704440 in words is "seventy-six million, seven hundred four thousand, four hundred forty".