265970390 has 96 divisors (see below), whose sum is σ = 597528576. Its totient is φ = 83255040.

The previous prime is 265970387. The next prime is 265970399. The reversal of 265970390 is 93079562.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265970399) 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 47 ways as a sum of consecutive naturals, for example, 3643394 + ... + 3643466.

It is an arithmetic number, because the mean of its divisors is an integer number (6224256).

Almost surely, 2^265970390 is an apocalyptic number.

265970390 is an abundant number, since it is smaller than the sum of its proper divisors (331558186).

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

265970390 is a wasteful number, since it uses less digits than its factorization.

265970390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 41.

The square root of 265970390 is about 16308.5986522448. The cubic root of 265970390 is about 643.0988950132.

The spelling of 265970390 in words is "two hundred sixty-five million, nine hundred seventy thousand, three hundred ninety".