22284144 has 60 divisors (see below), whose sum is σ = 66040416. Its totient is φ = 6990336.

The previous prime is 22284137. The next prime is 22284173. The reversal of 22284144 is 44148222.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2104 + ... + 6999.

Almost surely, 2^22284144 is an apocalyptic number.

22284144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22284144 is an abundant number, since it is smaller than the sum of its proper divisors (43756272).

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

22284144 is a wasteful number, since it uses less digits than its factorization.

22284144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9134 (or 9125 counting only the distinct ones).

The product of its digits is 4096, while the sum is 27.

The square root of 22284144 is about 4720.6084353608. The cubic root of 22284144 is about 281.4051138439.

The spelling of 22284144 in words is "twenty-two million, two hundred eighty-four thousand, one hundred forty-four".