77392442 has 16 divisors (see below), whose sum is σ = 118324800. Its totient is φ = 37957920.

The previous prime is 77392439. The next prime is 77392459. The reversal of 77392442 is 24429377.

It is a junction number, because it is equal to n+sod(n) for n = 77392396 and 77392405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21659 + ... + 24977.

It is an arithmetic number, because the mean of its divisors is an integer number (7395300).

Almost surely, 2^77392442 is an apocalyptic number.

77392442 is a deficient number, since it is larger than the sum of its proper divisors (40932358).

77392442 is a wasteful number, since it uses less digits than its factorization.

77392442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3541.

The product of its digits is 84672, while the sum is 38.

The square root of 77392442 is about 8797.2974259144. The cubic root of 77392442 is about 426.1536214819.

The spelling of 77392442 in words is "seventy-seven million, three hundred ninety-two thousand, four hundred forty-two".