77422044 has 48 divisors (see below), whose sum is σ = 206931200. Its totient is φ = 22070016.

The previous prime is 77422031. The next prime is 77422057. The reversal of 77422044 is 44022477.

It is an interprime number because it is at equal distance from previous prime (77422031) and next prime (77422057).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51252 + ... + 52740.

Almost surely, 2^77422044 is an apocalyptic number.

It is an amenable number.

77422044 is an abundant number, since it is smaller than the sum of its proper divisors (129509156).

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

77422044 is a wasteful number, since it uses less digits than its factorization.

77422044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122 (or 2120 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 30.

The square root of 77422044 is about 8798.9797135804. The cubic root of 77422044 is about 426.2079480248.

The spelling of 77422044 in words is "seventy-seven million, four hundred twenty-two thousand, forty-four".