265940898 has 32 divisors (see below), whose sum is σ = 542873472. Its totient is φ = 86832000.

The previous prime is 265940897. The next prime is 265940959. The reversal of 265940898 is 898049562.

It is a super-2 number, since 2×265940898² = 141449122458092808, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 265940898.

It is not an unprimeable number, because it can be changed into a prime (265940893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64128 + ... + 68148.

It is an arithmetic number, because the mean of its divisors is an integer number (16964796).

Almost surely, 2^265940898 is an apocalyptic number.

265940898 is an abundant number, since it is smaller than the sum of its proper divisors (276932574).

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

265940898 is a wasteful number, since it uses less digits than its factorization.

265940898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4250.

The product of its (nonzero) digits is 1244160, while the sum is 51.

The square root of 265940898 is about 16307.6944415819. The cubic root of 265940898 is about 643.0751242297.

The spelling of 265940898 in words is "two hundred sixty-five million, nine hundred forty thousand, eight hundred ninety-eight".