77044434 has 64 divisors (see below), whose sum is σ = 168099840. Its totient is φ = 23474880.

The previous prime is 77044381. The next prime is 77044441. The reversal of 77044434 is 43444077.

It is a junction number, because it is equal to n+sod(n) for n = 77044395 and 77044404.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 403279 + ... + 403469.

It is an arithmetic number, because the mean of its divisors is an integer number (2626560).

Almost surely, 2^77044434 is an apocalyptic number.

77044434 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

77044434 is an abundant number, since it is smaller than the sum of its proper divisors (91055406).

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

77044434 is a wasteful number, since it uses less digits than its factorization.

77044434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335.

The product of its (nonzero) digits is 37632, while the sum is 33.

The square root of 77044434 is about 8777.4958843625. The cubic root of 77044434 is about 425.5139047552.

The spelling of 77044434 in words is "seventy-seven million, forty-four thousand, four hundred thirty-four".