2245881 has 24 divisors (see below), whose sum is σ = 3447360. Its totient is φ = 1297120.

The previous prime is 2245871. The next prime is 2245889. The reversal of 2245881 is 1885422.

It is not a de Polignac number, because 2245881 - 2⁵ = 2245849 is a prime.

It is a super-2 number, since 2×2245881² = 10087962932322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2245889) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8215 + ... + 8483.

It is an arithmetic number, because the mean of its divisors is an integer number (143640).

2^2245881 is an apocalyptic number.

It is an amenable number.

2245881 is a deficient number, since it is larger than the sum of its proper divisors (1201479).

2245881 is a wasteful number, since it uses less digits than its factorization.

2245881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317 (or 306 counting only the distinct ones).

The product of its digits is 5120, while the sum is 30.

The square root of 2245881 is about 1498.6263710478. The cubic root of 2245881 is about 130.9570591345.

It can be divided in two parts, 224 and 5881, that added together give a triangular number (6105 = T₁₁₀).

The spelling of 2245881 in words is "two million, two hundred forty-five thousand, eight hundred eighty-one".