76905940 has 12 divisors (see below), whose sum is σ = 161502516. Its totient is φ = 30762368.

The previous prime is 76905893. The next prime is 76905971. The reversal of 76905940 is 4950967.

It can be written as a sum of positive squares in 2 ways, for example, as 11587216 + 65318724 = 3404^2 + 8082^2 .

It is a junction number, because it is equal to n+sod(n) for n = 76905893 and 76905902.

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, 1922629 + ... + 1922668.

It is an arithmetic number, because the mean of its divisors is an integer number (13458543).

Almost surely, 2^76905940 is an apocalyptic number.

It is an amenable number.

76905940 is an abundant number, since it is smaller than the sum of its proper divisors (84596576).

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

76905940 is a wasteful number, since it uses less digits than its factorization.

76905940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3845306 (or 3845304 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 76905940 is about 8769.6031837250. The cubic root of 76905940 is about 425.2587858745.

The spelling of 76905940 in words is "seventy-six million, nine hundred five thousand, nine hundred forty".