22259236 has 6 divisors (see below), whose sum is σ = 38953670. Its totient is φ = 11129616.

The previous prime is 22259219. The next prime is 22259243. The reversal of 22259236 is 63295222.

It is a happy number.

22259236 is nontrivially palindromic in base 15.

It can be written as a sum of positive squares in only one way, i.e., 16451136 + 5808100 = 4056^2 + 2410^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22259198 and 22259207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2782401 + ... + 2782408.

Almost surely, 2^22259236 is an apocalyptic number.

It is an amenable number.

22259236 is a deficient number, since it is larger than the sum of its proper divisors (16694434).

22259236 is a wasteful number, since it uses less digits than its factorization.

22259236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5564813 (or 5564811 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 22259236 is about 4717.9694784939. The cubic root of 22259236 is about 281.3002283296.

The spelling of 22259236 in words is "twenty-two million, two hundred fifty-nine thousand, two hundred thirty-six".