2253906 has 20 divisors (see below), whose sum is σ = 5050782. Its totient is φ = 751248.

The previous prime is 2253899. The next prime is 2253919. The reversal of 2253906 is 6093522.

It can be written as a sum of positive squares in only one way, i.e., 1798281 + 455625 = 1341^2 + 675^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 2253906.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6795 + ... + 7118.

2^2253906 is an apocalyptic number.

2253906 is an abundant number, since it is smaller than the sum of its proper divisors (2796876).

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

2253906 is a wasteful number, since it uses less digits than its factorization.

2253906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13927 (or 13918 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 2253906 is about 1501.3014354219. The cubic root of 2253906 is about 131.1128526586.

The spelling of 2253906 in words is "two million, two hundred fifty-three thousand, nine hundred six".