2257986 has 16 divisors (see below), whose sum is σ = 4536000. Its totient is φ = 749328.

The previous prime is 2257961. The next prime is 2257987. The reversal of 2257986 is 6897522.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2257987) 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, 915 + ... + 2313.

It is an arithmetic number, because the mean of its divisors is an integer number (283500).

2^2257986 is an apocalyptic number.

2257986 is an abundant number, since it is smaller than the sum of its proper divisors (2278014).

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

2257986 is a wasteful number, since it uses less digits than its factorization.

2257986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673.

The product of its digits is 60480, while the sum is 39.

The square root of 2257986 is about 1502.6596421013. The cubic root of 2257986 is about 131.1919180650.

The spelling of 2257986 in words is "two million, two hundred fifty-seven thousand, nine hundred eighty-six".