22261938 has 16 divisors (see below), whose sum is σ = 45727680. Its totient is φ = 7220016.

The previous prime is 22261933. The next prime is 22261951. The reversal of 22261938 is 83916222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22261899 and 22261908.

It is not an unprimeable number, because it can be changed into a prime (22261933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49918 + ... + 50361.

It is an arithmetic number, because the mean of its divisors is an integer number (2857980).

Almost surely, 2^22261938 is an apocalyptic number.

22261938 is an abundant number, since it is smaller than the sum of its proper divisors (23465742).

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

22261938 is a wasteful number, since it uses less digits than its factorization.

22261938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100321.

The product of its digits is 10368, while the sum is 33.

The square root of 22261938 is about 4718.2558218053. The cubic root of 22261938 is about 281.3116100090.

The spelling of 22261938 in words is "twenty-two million, two hundred sixty-one thousand, nine hundred thirty-eight".