22288248 has 24 divisors (see below), whose sum is σ = 60364200. Its totient is φ = 7429392.

The previous prime is 22288247. The next prime is 22288261. The reversal of 22288248 is 84288222.

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22288243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 154708 + ... + 154851.

It is an arithmetic number, because the mean of its divisors is an integer number (2515175).

Almost surely, 2^22288248 is an apocalyptic number.

It is an amenable number.

22288248 is an abundant number, since it is smaller than the sum of its proper divisors (38075952).

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

22288248 is a wasteful number, since it uses less digits than its factorization.

22288248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309571 (or 309564 counting only the distinct ones).

The product of its digits is 32768, while the sum is 36.

The square root of 22288248 is about 4721.0431050775. The cubic root of 22288248 is about 281.4223879455.

The spelling of 22288248 in words is "twenty-two million, two hundred eighty-eight thousand, two hundred forty-eight".