22054940 has 12 divisors (see below), whose sum is σ = 46315416. Its totient is φ = 8821968.

The previous prime is 22054939. The next prime is 22054957. The reversal of 22054940 is 4945022.

It is a congruent number.

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, 551354 + ... + 551393.

It is an arithmetic number, because the mean of its divisors is an integer number (3859618).

Almost surely, 2^22054940 is an apocalyptic number.

22054940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22054940 is an abundant number, since it is smaller than the sum of its proper divisors (24260476).

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

22054940 is a wasteful number, since it uses less digits than its factorization.

22054940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102756 (or 1102754 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 22054940 is about 4696.2687316635. The cubic root of 22054940 is about 280.4369877194.

Adding to 22054940 its reverse (4945022), we get a palindrome (26999962).

The spelling of 22054940 in words is "twenty-two million, fifty-four thousand, nine hundred forty".