77440942 has 8 divisors (see below), whose sum is σ = 117311832. Its totient is φ = 38337000.

The previous prime is 77440939. The next prime is 77440973. The reversal of 77440942 is 24904477.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191484 + ... + 191887.

It is an arithmetic number, because the mean of its divisors is an integer number (14663979).

Almost surely, 2^77440942 is an apocalyptic number.

77440942 is a deficient number, since it is larger than the sum of its proper divisors (39870890).

77440942 is a wasteful number, since it uses less digits than its factorization.

77440942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383474.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 77440942 is about 8800.0535225645. The cubic root of 77440942 is about 426.2426230008.

The spelling of 77440942 in words is "seventy-seven million, four hundred forty thousand, nine hundred forty-two".