22240488 has 96 divisors (see below), whose sum is σ = 62544960. Its totient is φ = 6566400.

The previous prime is 22240457. The next prime is 22240499. The reversal of 22240488 is 88404222.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147213 + ... + 147363.

It is an arithmetic number, because the mean of its divisors is an integer number (651510).

Almost surely, 2^22240488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22240488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31272480).

22240488 is an abundant number, since it is smaller than the sum of its proper divisors (40304472).

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

22240488 is a wasteful number, since it uses less digits than its factorization.

22240488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 30.

The square root of 22240488 is about 4715.9821882615. The cubic root of 22240488 is about 281.2212304399.

The spelling of 22240488 in words is "twenty-two million, two hundred forty thousand, four hundred eighty-eight".