265442388 has 24 divisors (see below), whose sum is σ = 651964320. Its totient is φ = 83823840.

The previous prime is 265442347. The next prime is 265442389. The reversal of 265442388 is 883244562.

265442388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×265442388² = 140919322694285088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265442389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 581883 + ... + 582338.

It is an arithmetic number, because the mean of its divisors is an integer number (27165180).

Almost surely, 2^265442388 is an apocalyptic number.

It is an amenable number.

265442388 is an abundant number, since it is smaller than the sum of its proper divisors (386521932).

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

265442388 is a wasteful number, since it uses less digits than its factorization.

265442388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164247 (or 1164245 counting only the distinct ones).

The product of its digits is 368640, while the sum is 42.

The square root of 265442388 is about 16292.4027693892. The cubic root of 265442388 is about 642.6730550712.

The spelling of 265442388 in words is "two hundred sixty-five million, four hundred forty-two thousand, three hundred eighty-eight".