77464044 has 36 divisors (see below), whose sum is σ = 223785744. Its totient is φ = 22132512.

The previous prime is 77464043. The next prime is 77464063. The reversal of 77464044 is 44046477.

77464044 is a `hidden beast` number, since 7 + 7 + 4 + 640 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×77464044² = 12001356225667872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (77464043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153447 + ... + 153950.

Almost surely, 2^77464044 is an apocalyptic number.

It is an amenable number.

77464044 is an abundant number, since it is smaller than the sum of its proper divisors (146321700).

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

77464044 is a wasteful number, since it uses less digits than its factorization.

77464044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307414 (or 307409 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 36.

The square root of 77464044 is about 8801.3660303387. The cubic root of 77464044 is about 426.2850040196.

The spelling of 77464044 in words is "seventy-seven million, four hundred sixty-four thousand, forty-four".