771040456 has 8 divisors (see below), whose sum is σ = 1445700870. Its totient is φ = 385520224.

The previous prime is 771040453. The next prime is 771040469. The reversal of 771040456 is 654040177.

It is a happy number.

771040456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 708092100 + 62948356 = 26610^2 + 7934^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (771040453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48190021 + ... + 48190036.

Almost surely, 2^771040456 is an apocalyptic number.

It is an amenable number.

771040456 is a deficient number, since it is larger than the sum of its proper divisors (674660414).

771040456 is a wasteful number, since it uses less digits than its factorization.

771040456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96380063 (or 96380059 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 771040456 is about 27767.6152378990. The cubic root of 771040456 is about 916.9782934901.

The spelling of 771040456 in words is "seven hundred seventy-one million, forty thousand, four hundred fifty-six".