2255490 has 48 divisors (see below), whose sum is σ = 6177600. Its totient is φ = 569376.

The previous prime is 2255489. The next prime is 2255501. The reversal of 2255490 is 945522.

2255490 is a `hidden beast` number, since 22 + 554 + 90 = 666.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1051 + ... + 2369.

It is an arithmetic number, because the mean of its divisors is an integer number (128700).

2^2255490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2255490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3088800).

2255490 is an abundant number, since it is smaller than the sum of its proper divisors (3922110).

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

2255490 is a wasteful number, since it uses less digits than its factorization.

2255490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351 (or 1348 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 2255490 is about 1501.8288850598. The cubic root of 2255490 is about 131.1435599620.

The spelling of 2255490 in words is "two million, two hundred fifty-five thousand, four hundred ninety".