2250840 has 32 divisors (see below), whose sum is σ = 6752880. Its totient is φ = 600192.

The previous prime is 2250799. The next prime is 2250869. The reversal of 2250840 is 480522.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9259 + ... + 9498.

2^2250840 is an apocalyptic number.

2250840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2250840 is an abundant number, since it is smaller than the sum of its proper divisors (4502040).

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

2250840 is a wasteful number, since it uses less digits than its factorization.

2250840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18771 (or 18767 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 2250840 is about 1500.2799738715. The cubic root of 2250840 is about 131.0533745169.

The spelling of 2250840 in words is "two million, two hundred fifty thousand, eight hundred forty".