2600244 has 18 divisors (see below), whose sum is σ = 6572930. Its totient is φ = 866736.

The previous prime is 2600239. The next prime is 2600251. The reversal of 2600244 is 4420062.

It can be written as a sum of positive squares in only one way, i.e., 1790244 + 810000 = 1338^2 + 900^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×2600244² = 13522537719072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36079 + ... + 36150.

2^2600244 is an apocalyptic number.

It is an amenable number.

2600244 is an abundant number, since it is smaller than the sum of its proper divisors (3972686).

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

2600244 is a wasteful number, since it uses less digits than its factorization.

2600244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72239 (or 72234 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2600244 is about 1612.5272090728. The cubic root of 2600244 is about 137.5111880703.

The spelling of 2600244 in words is "two million, six hundred thousand, two hundred forty-four".