76704040 has 32 divisors (see below), whose sum is σ = 197239680. Its totient is φ = 26298432.

The previous prime is 76704031. The next prime is 76704041. The reversal of 76704040 is 4040767.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (76704041) 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, 136692 + ... + 137251.

It is an arithmetic number, because the mean of its divisors is an integer number (6163740).

Almost surely, 2^76704040 is an apocalyptic number.

76704040 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

76704040 is an abundant number, since it is smaller than the sum of its proper divisors (120535640).

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

76704040 is a wasteful number, since it uses less digits than its factorization.

76704040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273961 (or 273957 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 76704040 is about 8758.0842654087. The cubic root of 76704040 is about 424.8863179218.

The spelling of 76704040 in words is "seventy-six million, seven hundred four thousand, forty".