265003040 has 48 divisors (see below), whose sum is σ = 627043032. Its totient is φ = 105836544.

The previous prime is 265003031. The next prime is 265003087. The reversal of 265003040 is 40300562.

It can be written as a sum of positive squares in 4 ways, for example, as 264908176 + 94864 = 16276^2 + 308^2 .

It is a super-2 number, since 2×265003040² = 140453222418483200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 203672 + ... + 204968.

Almost surely, 2^265003040 is an apocalyptic number.

265003040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265003040 is an abundant number, since it is smaller than the sum of its proper divisors (362039992).

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

265003040 is a wasteful number, since it uses less digits than its factorization.

265003040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2589 (or 2581 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 265003040 is about 16278.9139686897. The cubic root of 265003040 is about 642.3182849979.

The spelling of 265003040 in words is "two hundred sixty-five million, three thousand, forty".