770656434 has 16 divisors (see below), whose sum is σ = 1541837280. Its totient is φ = 256798080.

The previous prime is 770656399. The next prime is 770656441. The reversal of 770656434 is 434656077.

It is a happy number.

It is a super-2 number, since 2×770656434² = 1187822678531192712, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1252 + ... + 39279.

It is an arithmetic number, because the mean of its divisors is an integer number (96364830).

Almost surely, 2^770656434 is an apocalyptic number.

770656434 is an abundant number, since it is smaller than the sum of its proper divisors (771180846).

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

770656434 is a wasteful number, since it uses less digits than its factorization.

770656434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43705.

The product of its (nonzero) digits is 423360, while the sum is 42.

The square root of 770656434 is about 27760.6994508424. The cubic root of 770656434 is about 916.8260324280.

The spelling of 770656434 in words is "seven hundred seventy million, six hundred fifty-six thousand, four hundred thirty-four".