22248688 has 40 divisors (see below), whose sum is σ = 53746560. Its totient is φ = 8667840.

The previous prime is 22248679. The next prime is 22248689. The reversal of 22248688 is 88684222.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 22248688.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22248689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7798 + ... + 10261.

It is an arithmetic number, because the mean of its divisors is an integer number (1343664).

Almost surely, 2^22248688 is an apocalyptic number.

22248688 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22248688 is an abundant number, since it is smaller than the sum of its proper divisors (31497872).

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

22248688 is a wasteful number, since it uses less digits than its factorization.

22248688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18085 (or 18079 counting only the distinct ones).

The product of its digits is 98304, while the sum is 40.

The square root of 22248688 is about 4716.8514922562. The cubic root of 22248688 is about 281.2557879961.

The spelling of 22248688 in words is "twenty-two million, two hundred forty-eight thousand, six hundred eighty-eight".