77444044 has 12 divisors (see below), whose sum is σ = 143499384. Its totient is φ = 36444224.

The previous prime is 77444041. The next prime is 77444053. The reversal of 77444044 is 44044477.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (77444041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 569374 + ... + 569509.

It is an arithmetic number, because the mean of its divisors is an integer number (11958282).

Almost surely, 2^77444044 is an apocalyptic number.

It is an amenable number.

77444044 is a deficient number, since it is larger than the sum of its proper divisors (66055340).

77444044 is a wasteful number, since it uses less digits than its factorization.

77444044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138904 (or 1138902 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 34.

The square root of 77444044 is about 8800.2297697276. The cubic root of 77444044 is about 426.2483141633.

The spelling of 77444044 in words is "seventy-seven million, four hundred forty-four thousand, forty-four".