772696440 has 96 divisors (see below), whose sum is σ = 2529755280. Its totient is φ = 204535296.

The previous prime is 772696433. The next prime is 772696453. The reversal of 772696440 is 44696277.

772696440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 41487 + ... + 57153.

Almost surely, 2^772696440 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 772696440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1264877640).

772696440 is an abundant number, since it is smaller than the sum of its proper divisors (1757058840).

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

772696440 is a wasteful number, since it uses less digits than its factorization.

772696440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15821 (or 15814 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The square root of 772696440 is about 27797.4178656939. The cubic root of 772696440 is about 917.6342969278.

The spelling of 772696440 in words is "seven hundred seventy-two million, six hundred ninety-six thousand, four hundred forty".