22280922 has 12 divisors (see below), whose sum is σ = 48275370. Its totient is φ = 7426968.

The previous prime is 22280899. The next prime is 22280927. The reversal of 22280922 is 22908222.

It can be written as a sum of positive squares in only one way, i.e., 15515721 + 6765201 = 3939^2 + 2601^2 .

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

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 618897 + ... + 618932.

Almost surely, 2^22280922 is an apocalyptic number.

22280922 is an abundant number, since it is smaller than the sum of its proper divisors (25994448).

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

22280922 is a wasteful number, since it uses less digits than its factorization.

22280922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237837 (or 1237834 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 22280922 is about 4720.2671534565. The cubic root of 22280922 is about 281.3915506728.

The spelling of 22280922 in words is "twenty-two million, two hundred eighty thousand, nine hundred twenty-two".