769395138 has 32 divisors (see below), whose sum is σ = 1593561600. Its totient is φ = 247390080.

The previous prime is 769395127. The next prime is 769395167. The reversal of 769395138 is 831593967.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52438 + ... + 65486.

It is an arithmetic number, because the mean of its divisors is an integer number (49798800).

Almost surely, 2^769395138 is an apocalyptic number.

769395138 is an abundant number, since it is smaller than the sum of its proper divisors (824166462).

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

769395138 is a wasteful number, since it uses less digits than its factorization.

769395138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13402.

The product of its digits is 1224720, while the sum is 51.

The square root of 769395138 is about 27737.9728531124. The cubic root of 769395138 is about 916.3255844120.

It can be divided in two parts, 7693 and 95138, that added together give a triangular number (102831 = T₄₅₃).

The spelling of 769395138 in words is "seven hundred sixty-nine million, three hundred ninety-five thousand, one hundred thirty-eight".