2265729 has 8 divisors (see below), whose sum is σ = 3085440. Its totient is φ = 1478256.

The previous prime is 2265727. The next prime is 2265737. The reversal of 2265729 is 9275622.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2265729 - 2¹ = 2265727 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2265729.

It is not an unprimeable number, because it can be changed into a prime (2265721) 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 7 ways as a sum of consecutive naturals, for example, 7894 + ... + 8175.

It is an arithmetic number, because the mean of its divisors is an integer number (385680).

2^2265729 is an apocalyptic number.

It is an amenable number.

2265729 is a deficient number, since it is larger than the sum of its proper divisors (819711).

2265729 is a wasteful number, since it uses less digits than its factorization.

2265729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16119.

The product of its digits is 15120, while the sum is 33.

The square root of 2265729 is about 1505.2338688722. The cubic root of 2265729 is about 131.3417064299.

The spelling of 2265729 in words is "two million, two hundred sixty-five thousand, seven hundred twenty-nine".