2257140 has 24 divisors (see below), whose sum is σ = 6320160. Its totient is φ = 601888.

The previous prime is 2257139. The next prime is 2257169. The reversal of 2257140 is 417522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18750 + ... + 18869.

It is an arithmetic number, because the mean of its divisors is an integer number (263340).

2^2257140 is an apocalyptic number.

2257140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2257140 is an abundant number, since it is smaller than the sum of its proper divisors (4063020).

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

2257140 is a wasteful number, since it uses less digits than its factorization.

2257140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37631 (or 37629 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 2257140 is about 1502.3781148566. The cubic root of 2257140 is about 131.1755314522.

The spelling of 2257140 in words is "two million, two hundred fifty-seven thousand, one hundred forty".