265199040 has 84 divisors (see below), whose sum is σ = 912184104. Its totient is φ = 70718976.

The previous prime is 265199021. The next prime is 265199047. The reversal of 265199040 is 40991562.

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

It is a junction number, because it is equal to n+sod(n) for n = 265198986 and 265199004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265199047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43162 + ... + 48921.

Almost surely, 2^265199040 is an apocalyptic number.

265199040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265199040 is an abundant number, since it is smaller than the sum of its proper divisors (646985064).

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

265199040 is a wasteful number, since it uses less digits than its factorization.

265199040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92106 (or 92093 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 265199040 is about 16284.9329135861. The cubic root of 265199040 is about 642.4766018722.

The spelling of 265199040 in words is "two hundred sixty-five million, one hundred ninety-nine thousand, forty".