769025640 has 64 divisors (see below), whose sum is σ = 2325288960. Its totient is φ = 203454720.

The previous prime is 769025639. The next prime is 769025641. The reversal of 769025640 is 46520967.

It is an interprime number because it is at equal distance from previous prime (769025639) and next prime (769025641).

It is not an unprimeable number, because it can be changed into a prime (769025641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9991 + ... + 40470.

It is an arithmetic number, because the mean of its divisors is an integer number (36332640).

Almost surely, 2^769025640 is an apocalyptic number.

It is an amenable number.

769025640 is an abundant number, since it is smaller than the sum of its proper divisors (1556263320).

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

769025640 is a wasteful number, since it uses less digits than its factorization.

769025640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50602 (or 50598 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 769025640 is about 27731.3115448945. The cubic root of 769025640 is about 916.1788740638.

The spelling of 769025640 in words is "seven hundred sixty-nine million, twenty-five thousand, six hundred forty".