2257902 has 16 divisors (see below), whose sum is σ = 5017680. Its totient is φ = 752616.

The previous prime is 2257883. The next prime is 2257909. The reversal of 2257902 is 2097522.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20853 + ... + 20960.

It is an arithmetic number, because the mean of its divisors is an integer number (313605).

2^2257902 is an apocalyptic number.

2257902 is an abundant number, since it is smaller than the sum of its proper divisors (2759778).

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

2257902 is a wasteful number, since it uses less digits than its factorization.

2257902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41824 (or 41818 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 2257902 is about 1502.6316914001. The cubic root of 2257902 is about 131.1902912085.

The spelling of 2257902 in words is "two million, two hundred fifty-seven thousand, nine hundred two".