22504000436 has 12 divisors (see below), whose sum is σ = 40446379428. Its totient is φ = 10947892032.

The previous prime is 22504000397. The next prime is 22504000451. The reversal of 22504000436 is 63400040522.

It can be written as a sum of positive squares in 2 ways, for example, as 19156220836 + 3347779600 = 138406^2 + 57860^2 .

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, 76026881 + ... + 76027176.

It is an arithmetic number, because the mean of its divisors is an integer number (3370531619).

Almost surely, 2^22504000436 is an apocalyptic number.

22504000436 is the 80186-th centered heptagonal number.

It is an amenable number.

22504000436 is a deficient number, since it is larger than the sum of its proper divisors (17942378992).

22504000436 is a wasteful number, since it uses less digits than its factorization.

22504000436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152054098 (or 152054096 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 22504000436 its reverse (63400040522), we get a palindrome (85904040958).

The spelling of 22504000436 in words is "twenty-two billion, five hundred four million, four hundred thirty-six", and thus it is an aban number.