77682242 has 24 divisors (see below), whose sum is σ = 132507900. Its totient is φ = 34089440.

The previous prime is 77682233. The next prime is 77682257. The reversal of 77682242 is 24228677.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 73805281 + 3876961 = 8591^2 + 1969^2 .

It is a junction number, because it is equal to n+sod(n) for n = 77682196 and 77682205.

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, 1484 + ... + 12552.

Almost surely, 2^77682242 is an apocalyptic number.

77682242 is a deficient number, since it is larger than the sum of its proper divisors (54825658).

77682242 is a wasteful number, since it uses less digits than its factorization.

77682242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11122 (or 11111 counting only the distinct ones).

The product of its digits is 75264, while the sum is 38.

The square root of 77682242 is about 8813.7530031196. The cubic root of 77682242 is about 426.6848770168.

The spelling of 77682242 in words is "seventy-seven million, six hundred eighty-two thousand, two hundred forty-two".