770877442 has 4 divisors (see below), whose sum is σ = 1156316166. Its totient is φ = 385438720.

The previous prime is 770877439. The next prime is 770877451. The reversal of 770877442 is 244778077.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 689535081 + 81342361 = 26259^2 + 9019^2 .

It is a junction number, because it is equal to n+sod(n) for n = 770877392 and 770877401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192719359 + ... + 192719362.

Almost surely, 2^770877442 is an apocalyptic number.

770877442 is a deficient number, since it is larger than the sum of its proper divisors (385438724).

770877442 is a wasteful number, since it uses less digits than its factorization.

770877442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385438723.

The product of its (nonzero) digits is 614656, while the sum is 46.

The square root of 770877442 is about 27764.6797568421. The cubic root of 770877442 is about 916.9136661700.

The spelling of 770877442 in words is "seven hundred seventy million, eight hundred seventy-seven thousand, four hundred forty-two".