265390272 has 126 divisors (see below), whose sum is σ = 884982228. Its totient is φ = 75817728.

The previous prime is 265390267. The next prime is 265390273. The reversal of 265390272 is 272093562.

265390272 is a `hidden beast` number, since 265 + 390 + 2 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (126).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (265390273) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 23523 + ... + 32925.

Almost surely, 2^265390272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265390272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (442491114).

265390272 is an abundant number, since it is smaller than the sum of its proper divisors (619591956).

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

265390272 is a wasteful number, since it uses less digits than its factorization.

265390272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9435 (or 9415 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 265390272 is about 16290.8032951110. The cubic root of 265390272 is about 642.6309922826.

The spelling of 265390272 in words is "two hundred sixty-five million, three hundred ninety thousand, two hundred seventy-two".