765970290 has 64 divisors (see below), whose sum is σ = 2076117120. Its totient is φ = 200905920.

The previous prime is 765970279. The next prime is 765970319. The reversal of 765970290 is 92079567.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6784 + ... + 39723.

It is an arithmetic number, because the mean of its divisors is an integer number (32439330).

Almost surely, 2^765970290 is an apocalyptic number.

765970290 is an abundant number, since it is smaller than the sum of its proper divisors (1310146830).

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

765970290 is a wasteful number, since it uses less digits than its factorization.

765970290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46584 (or 46578 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 765970290 is about 27676.1682680244. The cubic root of 765970290 is about 914.9639330046.

The spelling of 765970290 in words is "seven hundred sixty-five million, nine hundred seventy thousand, two hundred ninety".