22550490 has 48 divisors (see below), whose sum is σ = 60005088. Its totient is φ = 5872608.

The previous prime is 22550477. The next prime is 22550497. The reversal of 22550490 is 9405522.

22550490 is a `hidden beast` number, since 22 + 550 + 4 + 90 = 666.

It is not an unprimeable number, because it can be changed into a prime (22550497) by changing a digit.

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, 957 + ... + 6783.

It is an arithmetic number, because the mean of its divisors is an integer number (1250106).

Almost surely, 2^22550490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22550490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30002544).

22550490 is an abundant number, since it is smaller than the sum of its proper divisors (37454598).

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

22550490 is a wasteful number, since it uses less digits than its factorization.

22550490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5883 (or 5880 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 22550490 is about 4748.7356211943. The cubic root of 22550490 is about 282.5218193918.

The spelling of 22550490 in words is "twenty-two million, five hundred fifty thousand, four hundred ninety".