22475772 has 48 divisors (see below), whose sum is σ = 63571200. Its totient is φ = 6810480.

The previous prime is 22475771. The next prime is 22475779. The reversal of 22475772 is 27757422.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22475771) 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 15 ways as a sum of consecutive naturals, for example, 8272 + ... + 10647.

It is an arithmetic number, because the mean of its divisors is an integer number (1324400).

Almost surely, 2^22475772 is an apocalyptic number.

22475772 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22475772 is an abundant number, since it is smaller than the sum of its proper divisors (41095428).

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

22475772 is a wasteful number, since it uses less digits than its factorization.

22475772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18943 (or 18935 counting only the distinct ones).

The product of its digits is 54880, while the sum is 36.

The square root of 22475772 is about 4740.8619469459. The cubic root of 22475772 is about 282.2094415120.

The spelling of 22475772 in words is "twenty-two million, four hundred seventy-five thousand, seven hundred seventy-two".