77044842 has 24 divisors (see below), whose sum is σ = 190778016. Its totient is φ = 22012776.

The previous prime is 77044837. The next prime is 77044853. The reversal of 77044842 is 24844077.

It is a junction number, because it is equal to n+sod(n) for n = 77044797 and 77044806.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 305608 + ... + 305859.

It is an arithmetic number, because the mean of its divisors is an integer number (7949084).

Almost surely, 2^77044842 is an apocalyptic number.

77044842 is an abundant number, since it is smaller than the sum of its proper divisors (113733174).

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

77044842 is a wasteful number, since it uses less digits than its factorization.

77044842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611482 (or 611479 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 36.

The square root of 77044842 is about 8777.5191255844. The cubic root of 77044842 is about 425.5146558774.

The spelling of 77044842 in words is "seventy-seven million, forty-four thousand, eight hundred forty-two".