22488236 has 6 divisors (see below), whose sum is σ = 39354420. Its totient is φ = 11244116.

The previous prime is 22488233. The next prime is 22488241. The reversal of 22488236 is 63288422.

It is a junction number, because it is equal to n+sod(n) for n = 22488196 and 22488205.

It is not an unprimeable number, because it can be changed into a prime (22488233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2811026 + ... + 2811033.

It is an arithmetic number, because the mean of its divisors is an integer number (6559070).

Almost surely, 2^22488236 is an apocalyptic number.

It is an amenable number.

22488236 is a deficient number, since it is larger than the sum of its proper divisors (16866184).

22488236 is a wasteful number, since it uses less digits than its factorization.

22488236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5622063 (or 5622061 counting only the distinct ones).

The product of its digits is 36864, while the sum is 35.

The square root of 22488236 is about 4742.1762936441. The cubic root of 22488236 is about 282.2615985409.

The spelling of 22488236 in words is "twenty-two million, four hundred eighty-eight thousand, two hundred thirty-six".