22104340 has 12 divisors (see below), whose sum is σ = 46419156. Its totient is φ = 8841728.

The previous prime is 22104337. The next prime is 22104347. The reversal of 22104340 is 4340122.

It can be written as a sum of positive squares in 2 ways, for example, as 5750404 + 16353936 = 2398^2 + 4044^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22104347) 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, 552589 + ... + 552628.

It is an arithmetic number, because the mean of its divisors is an integer number (3868263).

Almost surely, 2^22104340 is an apocalyptic number.

22104340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22104340 is an abundant number, since it is smaller than the sum of its proper divisors (24314816).

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

22104340 is a wasteful number, since it uses less digits than its factorization.

22104340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105226 (or 1105224 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 22104340 is about 4701.5252844157. The cubic root of 22104340 is about 280.6462115437.

Adding to 22104340 its reverse (4340122), we get a palindrome (26444462).

The spelling of 22104340 in words is "twenty-two million, one hundred four thousand, three hundred forty".