22104140 has 12 divisors (see below), whose sum is σ = 46418736. Its totient is φ = 8841648.

The previous prime is 22104113. The next prime is 22104151. The reversal of 22104140 is 4140122.

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, 552584 + ... + 552623.

It is an arithmetic number, because the mean of its divisors is an integer number (3868228).

Almost surely, 2^22104140 is an apocalyptic number.

22104140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22104140 is an abundant number, since it is smaller than the sum of its proper divisors (24314596).

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

22104140 is a wasteful number, since it uses less digits than its factorization.

22104140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105216 (or 1105214 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 22104140 is about 4701.5040146745. The cubic root of 22104140 is about 280.6453651125.

Adding to 22104140 its reverse (4140122), we get a palindrome (26244262).

The spelling of 22104140 in words is "twenty-two million, one hundred four thousand, one hundred forty".