22440825 has 36 divisors (see below), whose sum is σ = 43852848. Its totient is φ = 10879200.

The previous prime is 22440763. The next prime is 22440841. The reversal of 22440825 is 52804422.

It is a happy number.

It is not a de Polignac number, because 22440825 - 2¹⁰ = 22439801 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2059 + ... + 7008.

Almost surely, 2^22440825 is an apocalyptic number.

22440825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22440825 is a deficient number, since it is larger than the sum of its proper divisors (21412023).

22440825 is a wasteful number, since it uses less digits than its factorization.

22440825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9094 (or 9086 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 22440825 is about 4737.1747909487. The cubic root of 22440825 is about 282.0630989027.

The spelling of 22440825 in words is "twenty-two million, four hundred forty thousand, eight hundred twenty-five".