265940466 has 64 divisors (see below), whose sum is σ = 601413120. Its totient is φ = 77696640.

The previous prime is 265940461. The next prime is 265940471. The reversal of 265940466 is 664049562.

265940466 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (265940461) and next prime (265940471).

It is not an unprimeable number, because it can be changed into a prime (265940461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 234990 + ... + 236118.

It is an arithmetic number, because the mean of its divisors is an integer number (9397080).

Almost surely, 2^265940466 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265940466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300706560).

265940466 is an abundant number, since it is smaller than the sum of its proper divisors (335472654).

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

265940466 is a wasteful number, since it uses less digits than its factorization.

265940466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271.

The product of its (nonzero) digits is 311040, while the sum is 42.

The square root of 265940466 is about 16307.6811962952. The cubic root of 265940466 is about 643.0747760213.

The spelling of 265940466 in words is "two hundred sixty-five million, nine hundred forty thousand, four hundred sixty-six".