22028925 has 24 divisors (see below), whose sum is σ = 36560160. Its totient is φ = 11704000.

The previous prime is 22028921. The next prime is 22028927. The reversal of 22028925 is 52982022.

It is not a de Polignac number, because 22028925 - 2² = 22028921 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 22028892 and 22028901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22028921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31075 + ... + 31775.

It is an arithmetic number, because the mean of its divisors is an integer number (1523340).

Almost surely, 2^22028925 is an apocalyptic number.

22028925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22028925 is a deficient number, since it is larger than the sum of its proper divisors (14531235).

22028925 is a wasteful number, since it uses less digits than its factorization.

22028925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133 (or 1128 counting only the distinct ones).

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

The square root of 22028925 is about 4693.4981623518. The cubic root of 22028925 is about 280.3266807826.

The spelling of 22028925 in words is "twenty-two million, twenty-eight thousand, nine hundred twenty-five".