2265172 has 48 divisors (see below), whose sum is σ = 5017600. Its totient is φ = 889056.

The previous prime is 2265163. The next prime is 2265173. The reversal of 2265172 is 2715622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2265173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17773 + ... + 17899.

2^2265172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2265172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2508800).

2265172 is an abundant number, since it is smaller than the sum of its proper divisors (2752428).

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

2265172 is a wasteful number, since it uses less digits than its factorization.

2265172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 149 counting only the distinct ones).

The product of its digits is 1680, while the sum is 25.

The square root of 2265172 is about 1505.0488364169. The cubic root of 2265172 is about 131.3309426645.

The spelling of 2265172 in words is "two million, two hundred sixty-five thousand, one hundred seventy-two".