22280925 has 12 divisors (see below), whose sum is σ = 36837920. Its totient is φ = 11883120.

The previous prime is 22280899. The next prime is 22280927. The reversal of 22280925 is 52908222.

It is not a de Polignac number, because 22280925 - 2⁵ = 22280893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22280892 and 22280901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22280927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148465 + ... + 148614.

Almost surely, 2^22280925 is an apocalyptic number.

22280925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22280925 is a deficient number, since it is larger than the sum of its proper divisors (14556995).

22280925 is a wasteful number, since it uses less digits than its factorization.

22280925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297092 (or 297087 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 22280925 is about 4720.2674712351. The cubic root of 22280925 is about 281.3915633020.

The spelling of 22280925 in words is "twenty-two million, two hundred eighty thousand, nine hundred twenty-five".