22134940 has 12 divisors (see below), whose sum is σ = 46483416. Its totient is φ = 8853968.

The previous prime is 22134877. The next prime is 22134941. The reversal of 22134940 is 4943122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22134941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553354 + ... + 553393.

It is an arithmetic number, because the mean of its divisors is an integer number (3873618).

Almost surely, 2^22134940 is an apocalyptic number.

22134940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22134940 is an abundant number, since it is smaller than the sum of its proper divisors (24348476).

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

22134940 is a wasteful number, since it uses less digits than its factorization.

22134940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106756 (or 1106754 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 22134940 is about 4704.7784219876. The cubic root of 22134940 is about 280.7756554193.

The spelling of 22134940 in words is "twenty-two million, one hundred thirty-four thousand, nine hundred forty".