77004040 has 32 divisors (see below), whose sum is σ = 173664000. Its totient is φ = 30729664.

The previous prime is 77004029. The next prime is 77004041. The reversal of 77004040 is 4040077.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (77004041) by changing a digit.

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, 17151 + ... + 21169.

It is an arithmetic number, because the mean of its divisors is an integer number (5427000).

Almost surely, 2^77004040 is an apocalyptic number.

It is an amenable number.

77004040 is an abundant number, since it is smaller than the sum of its proper divisors (96659960).

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

77004040 is a wasteful number, since it uses less digits than its factorization.

77004040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4509 (or 4505 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 22.

The square root of 77004040 is about 8775.1945847371. The cubic root of 77004040 is about 425.4395268386.

The spelling of 77004040 in words is "seventy-seven million, four thousand, forty".