22240590 has 32 divisors (see below), whose sum is σ = 56518560. Its totient is φ = 5581824.

The previous prime is 22240579. The next prime is 22240601. The reversal of 22240590 is 9504222.

It is an interprime number because it is at equal distance from previous prime (22240579) and next prime (22240601).

It is a self number, because there is not a number n which added to its sum of digits gives 22240590.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21295 + ... + 22314.

It is an arithmetic number, because the mean of its divisors is an integer number (1766205).

Almost surely, 2^22240590 is an apocalyptic number.

22240590 is an abundant number, since it is smaller than the sum of its proper divisors (34277970).

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

22240590 is a wasteful number, since it uses less digits than its factorization.

22240590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43636.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 22240590 is about 4715.9930025393. The cubic root of 22240590 is about 281.2216603544.

The spelling of 22240590 in words is "twenty-two million, two hundred forty thousand, five hundred ninety".