769345240 has 16 divisors (see below), whose sum is σ = 1731026880. Its totient is φ = 307738080.

The previous prime is 769345231. The next prime is 769345243. The reversal of 769345240 is 42543967.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 19233631 = 769345240 / (7 + 6 + 9 + 3 + 4 + 5 + 2 + 4 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 769345193 and 769345202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (769345243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9616776 + ... + 9616855.

It is an arithmetic number, because the mean of its divisors is an integer number (108189180).

Almost surely, 2^769345240 is an apocalyptic number.

It is an amenable number.

769345240 is an abundant number, since it is smaller than the sum of its proper divisors (961681640).

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

769345240 is a wasteful number, since it uses less digits than its factorization.

769345240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19233642 (or 19233638 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 769345240 is about 27737.0733856332. The cubic root of 769345240 is about 916.3057749971.

The spelling of 769345240 in words is "seven hundred sixty-nine million, three hundred forty-five thousand, two hundred forty".