22119940 has 12 divisors (see below), whose sum is σ = 46451916. Its totient is φ = 8847968.

The previous prime is 22119919. The next prime is 22119959. The reversal of 22119940 is 4991122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15729156 + 6390784 = 3966^2 + 2528^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22119899 and 22119908.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552979 + ... + 553018.

It is an arithmetic number, because the mean of its divisors is an integer number (3870993).

Almost surely, 2^22119940 is an apocalyptic number.

22119940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22119940 is an abundant number, since it is smaller than the sum of its proper divisors (24331976).

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

22119940 is a wasteful number, since it uses less digits than its factorization.

22119940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106006 (or 1106004 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 22119940 is about 4703.1840278688. The cubic root of 22119940 is about 280.7122174558.

The spelling of 22119940 in words is "twenty-two million, one hundred nineteen thousand, nine hundred forty".