22288136 has 16 divisors (see below), whose sum is σ = 45005100. Its totient is φ = 10286784.

The previous prime is 22288117. The next prime is 22288151. The reversal of 22288136 is 63188222.

It can be written as a sum of positive squares in 2 ways, for example, as 16859236 + 5428900 = 4106^2 + 2330^2 .

It is a super-2 number, since 2×22288136² = 993522012708992, which contains 22 as substring.

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, 107051 + ... + 107258.

Almost surely, 2^22288136 is an apocalyptic number.

22288136 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

22288136 is an abundant number, since it is smaller than the sum of its proper divisors (22716964).

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

22288136 is a wasteful number, since it uses less digits than its factorization.

22288136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214328 (or 214324 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 22288136 is about 4721.0312432773. The cubic root of 22288136 is about 281.4219165556.

The spelling of 22288136 in words is "twenty-two million, two hundred eighty-eight thousand, one hundred thirty-six".