22503940 has 24 divisors (see below), whose sum is σ = 47859840. Its totient is φ = 8887008.

The previous prime is 22503889. The next prime is 22503941. The reversal of 22503940 is 4930522.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (22503941) 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, 5542 + ... + 8701.

It is an arithmetic number, because the mean of its divisors is an integer number (1994160).

Almost surely, 2^22503940 is an apocalyptic number.

22503940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22503940 is an abundant number, since it is smaller than the sum of its proper divisors (25355900).

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

22503940 is a wasteful number, since it uses less digits than its factorization.

22503940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14331 (or 14329 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 22503940 is about 4743.8317845387. The cubic root of 22503940 is about 282.3272862890.

The spelling of 22503940 in words is "twenty-two million, five hundred three thousand, nine hundred forty".