22489590 has 16 divisors (see below), whose sum is σ = 53975088. Its totient is φ = 5997216.

The previous prime is 22489573. The next prime is 22489591. The reversal of 22489590 is 9598422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22489591) 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, 374797 + ... + 374856.

It is an arithmetic number, because the mean of its divisors is an integer number (3373443).

Almost surely, 2^22489590 is an apocalyptic number.

22489590 is an abundant number, since it is smaller than the sum of its proper divisors (31485498).

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

22489590 is a wasteful number, since it uses less digits than its factorization.

22489590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749663.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 22489590 is about 4742.3190529529. The cubic root of 22489590 is about 282.2672633477.

The spelling of 22489590 in words is "twenty-two million, four hundred eighty-nine thousand, five hundred ninety".