265827990 has 16 divisors (see below), whose sum is σ = 637987248. Its totient is φ = 70887456.

The previous prime is 265827983. The next prime is 265828049. The reversal of 265827990 is 99728562.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4430437 + ... + 4430496.

It is an arithmetic number, because the mean of its divisors is an integer number (39874203).

Almost surely, 2^265827990 is an apocalyptic number.

265827990 is an abundant number, since it is smaller than the sum of its proper divisors (372159258).

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

265827990 is a wasteful number, since it uses less digits than its factorization.

265827990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8860943.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 265827990 is about 16304.2322726340. The cubic root of 265827990 is about 642.9841032490.

The spelling of 265827990 in words is "two hundred sixty-five million, eight hundred twenty-seven thousand, nine hundred ninety".