76440560 has 40 divisors (see below), whose sum is σ = 203114976. Its totient is φ = 26208000.

The previous prime is 76440509. The next prime is 76440571. The reversal of 76440560 is 6504467.

76440560 = T₃₁₈₅ + T₃₁₈₆ + ... + T₃₁₉₉.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×76440560² = 11686318426227200, which contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 67691 + ... + 68810.

Almost surely, 2^76440560 is an apocalyptic number.

76440560 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

76440560 is an abundant number, since it is smaller than the sum of its proper divisors (126674416).

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

76440560 is a wasteful number, since it uses less digits than its factorization.

76440560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136521 (or 136515 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 76440560 is about 8743.0292233299. The cubic root of 76440560 is about 424.3992619828.

The spelling of 76440560 in words is "seventy-six million, four hundred forty thousand, five hundred sixty".