2256590 has 16 divisors (see below), whose sum is σ = 4642272. Its totient is φ = 773664.

The previous prime is 2256571. The next prime is 2256601. The reversal of 2256590 is 956522.

It is a Curzon number.

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, 16049 + ... + 16188.

It is an arithmetic number, because the mean of its divisors is an integer number (290142).

2^2256590 is an apocalyptic number.

2256590 is an abundant number, since it is smaller than the sum of its proper divisors (2385682).

2256590 is a wasteful number, since it uses less digits than its factorization.

2256590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32251.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 2256590 is about 1502.1950605697. The cubic root of 2256590 is about 131.1648760205.

The spelling of 2256590 in words is "two million, two hundred fifty-six thousand, five hundred ninety".