265402160 has 80 divisors (see below), whose sum is σ = 643768320. Its totient is φ = 101640960.

The previous prime is 265402139. The next prime is 265402177. The reversal of 265402160 is 61204562.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254921 + ... + 255959.

It is an arithmetic number, because the mean of its divisors is an integer number (8047104).

Almost surely, 2^265402160 is an apocalyptic number.

265402160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265402160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321884160).

265402160 is an abundant number, since it is smaller than the sum of its proper divisors (378366160).

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

265402160 is a wasteful number, since it uses less digits than its factorization.

265402160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186 (or 1180 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 265402160 is about 16291.1681594660. The cubic root of 265402160 is about 642.6405875641.

It can be divided in two parts, 265402 and 160, that added together give a palindrome (265562).

The spelling of 265402160 in words is "two hundred sixty-five million, four hundred two thousand, one hundred sixty".