22240374 has 64 divisors (see below), whose sum is σ = 51744000. Its totient is φ = 6314112.

The previous prime is 22240363. The next prime is 22240381. The reversal of 22240374 is 47304222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63552 + ... + 63900.

It is an arithmetic number, because the mean of its divisors is an integer number (808500).

Almost surely, 2^22240374 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22240374, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25872000).

22240374 is an abundant number, since it is smaller than the sum of its proper divisors (29503626).

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

22240374 is a wasteful number, since it uses less digits than its factorization.

22240374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429.

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 22240374 is about 4715.9701016864. The cubic root of 22240374 is about 281.2207499457.

Adding to 22240374 its reverse (47304222), we get a palindrome (69544596).

The spelling of 22240374 in words is "twenty-two million, two hundred forty thousand, three hundred seventy-four".