770796144 has 120 divisors (see below), whose sum is σ = 2200605680. Its totient is φ = 251817984.

The previous prime is 770796101. The next prime is 770796163. The reversal of 770796144 is 441697077.

It is a self number, because there is not a number n which added to its sum of digits gives 770796144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1941354 + ... + 1941750.

Almost surely, 2^770796144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 770796144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1100302840).

770796144 is an abundant number, since it is smaller than the sum of its proper divisors (1429809536).

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

770796144 is a wasteful number, since it uses less digits than its factorization.

770796144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 45.

The square root of 770796144 is about 27763.2156638960. The cubic root of 770796144 is about 916.8814319635.

The spelling of 770796144 in words is "seven hundred seventy million, seven hundred ninety-six thousand, one hundred forty-four".