769421312 has 52 divisors (see below), whose sum is σ = 1678630776. Its totient is φ = 349716480.

The previous prime is 769421311. The next prime is 769421329. The reversal of 769421312 is 213124967.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (769421311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36518 + ... + 53594.

Almost surely, 2^769421312 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 769421312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (839315388).

769421312 is an abundant number, since it is smaller than the sum of its proper divisors (909209464).

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

769421312 is a wasteful number, since it uses less digits than its factorization.

769421312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17112 (or 17090 counting only the distinct ones).

The product of its digits is 18144, while the sum is 35.

The square root of 769421312 is about 27738.4446571901. Note that the first 3 decimals coincide. The cubic root of 769421312 is about 916.3359750997.

The spelling of 769421312 in words is "seven hundred sixty-nine million, four hundred twenty-one thousand, three hundred twelve".