265290984 has 128 divisors (see below), whose sum is σ = 891820800. Its totient is φ = 71331840.

The previous prime is 265290973. The next prime is 265290997. The reversal of 265290984 is 489092562.

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, 20544 + ... + 30864.

It is an arithmetic number, because the mean of its divisors is an integer number (6967350).

Almost surely, 2^265290984 is an apocalyptic number.

265290984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265290984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (445910400).

265290984 is an abundant number, since it is smaller than the sum of its proper divisors (626529816).

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

265290984 is a wasteful number, since it uses less digits than its factorization.

265290984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10360 (or 10350 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 265290984 is about 16287.7556464972. The cubic root of 265290984 is about 642.5508417629.

It can be divided in two parts, 2652 and 90984, that added together give a square (93636 = 306²).

The spelling of 265290984 in words is "two hundred sixty-five million, two hundred ninety thousand, nine hundred eighty-four".