2257045 has 16 divisors (see below), whose sum is σ = 3150720. Its totient is φ = 1520064.

The previous prime is 2257007. The next prime is 2257049. The reversal of 2257045 is 5407522.

2257045 = 211² + 212² + ... + 252².

It is not a de Polignac number, because 2257045 - 2⁹ = 2256533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1519 + ... + 2611.

It is an arithmetic number, because the mean of its divisors is an integer number (196920).

2^2257045 is an apocalyptic number.

It is an amenable number.

2257045 is a deficient number, since it is larger than the sum of its proper divisors (893675).

2257045 is a wasteful number, since it uses less digits than its factorization.

2257045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164.

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 2257045 is about 1502.3464979824. The cubic root of 2257045 is about 131.1736910922.

The spelling of 2257045 in words is "two million, two hundred fifty-seven thousand, forty-five".