22104724 has 12 divisors (see below), whose sum is σ = 38782548. Its totient is φ = 11024000.

The previous prime is 22104713. The next prime is 22104737. The reversal of 22104724 is 42740122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18645124 + 3459600 = 4318^2 + 1860^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22104695 and 22104704.

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, 5287 + ... + 8494.

It is an arithmetic number, because the mean of its divisors is an integer number (3231879).

Almost surely, 2^22104724 is an apocalyptic number.

It is an amenable number.

22104724 is a deficient number, since it is larger than the sum of its proper divisors (16677824).

22104724 is a wasteful number, since it uses less digits than its factorization.

22104724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14186 (or 14184 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 22104724 is about 4701.5661220491. The cubic root of 22104724 is about 280.6478366774.

Adding to 22104724 its reverse (42740122), we get a palindrome (64844846).

The spelling of 22104724 in words is "twenty-two million, one hundred four thousand, seven hundred twenty-four".