2250440 has 32 divisors (see below), whose sum is σ = 5114880. Its totient is φ = 891072.

The previous prime is 2250439. The next prime is 2250461. The reversal of 2250440 is 440522.

2250440 = T₄₂₁ + T₄₂₂ + ... + T₄₄₄.

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, 4859 + ... + 5301.

It is an arithmetic number, because the mean of its divisors is an integer number (159840).

2^2250440 is an apocalyptic number.

2250440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2250440 is an abundant number, since it is smaller than the sum of its proper divisors (2864440).

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

2250440 is a wasteful number, since it uses less digits than its factorization.

2250440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581 (or 577 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 2250440 is about 1500.1466594970. The cubic root of 2250440 is about 131.0456108294.

Adding to 2250440 its reverse (440522), we get a palindrome (2690962).

The spelling of 2250440 in words is "two million, two hundred fifty thousand, four hundred forty".