2257630 has 16 divisors (see below), whose sum is σ = 4081104. Its totient is φ = 899200.

The previous prime is 2257609. The next prime is 2257639. The reversal of 2257630 is 367522.

It is a junction number, because it is equal to n+sod(n) for n = 2257595 and 2257604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3729 + ... + 4291.

It is an arithmetic number, because the mean of its divisors is an integer number (255069).

2^2257630 is an apocalyptic number.

2257630 is a deficient number, since it is larger than the sum of its proper divisors (1823474).

2257630 is a wasteful number, since it uses less digits than its factorization.

2257630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 2257630 is about 1502.5411808000. The cubic root of 2257630 is about 131.1850230153.

The spelling of 2257630 in words is "two million, two hundred fifty-seven thousand, six hundred thirty".