77204140 has 48 divisors (see below), whose sum is σ = 184881312. Its totient is φ = 26827776.

The previous prime is 77204137. The next prime is 77204147. The reversal of 77204140 is 4140277.

It is not an unprimeable number, because it can be changed into a prime (77204147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4314 + ... + 13153.

It is an arithmetic number, because the mean of its divisors is an integer number (3851694).

Almost surely, 2^77204140 is an apocalyptic number.

It is an amenable number.

77204140 is an abundant number, since it is smaller than the sum of its proper divisors (107677172).

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

77204140 is a wasteful number, since it uses less digits than its factorization.

77204140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17506 (or 17504 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 77204140 is about 8786.5886440643. The cubic root of 77204140 is about 425.8077188477.

The spelling of 77204140 in words is "seventy-seven million, two hundred four thousand, one hundred forty".