22052490 has 16 divisors (see below), whose sum is σ = 52926048. Its totient is φ = 5880656.

The previous prime is 22052477. The next prime is 22052491. The reversal of 22052490 is 9425022.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22052490.

It is not an unprimeable number, because it can be changed into a prime (22052491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367512 + ... + 367571.

It is an arithmetic number, because the mean of its divisors is an integer number (3307878).

Almost surely, 2^22052490 is an apocalyptic number.

22052490 is an abundant number, since it is smaller than the sum of its proper divisors (30873558).

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

22052490 is a wasteful number, since it uses less digits than its factorization.

22052490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735093.

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

The square root of 22052490 is about 4696.0078790394. The cubic root of 22052490 is about 280.4266031062.

The spelling of 22052490 in words is "twenty-two million, fifty-two thousand, four hundred ninety".