2257604 has 6 divisors (see below), whose sum is σ = 3950814. Its totient is φ = 1128800.

The previous prime is 2257597. The next prime is 2257609. The reversal of 2257604 is 4067522.

It can be written as a sum of positive squares in only one way, i.e., 2256004 + 1600 = 1502^2 + 40^2 .

It is not an unprimeable number, because it can be changed into a prime (2257609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282197 + ... + 282204.

It is an arithmetic number, because the mean of its divisors is an integer number (658469).

2^2257604 is an apocalyptic number.

It is an amenable number.

2257604 is a deficient number, since it is larger than the sum of its proper divisors (1693210).

2257604 is a wasteful number, since it uses less digits than its factorization.

2257604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564405 (or 564403 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 2257604 is about 1502.5325287660. The cubic root of 2257604 is about 131.1845194158.

The spelling of 2257604 in words is "two million, two hundred fifty-seven thousand, six hundred four".