22298624 has 30 divisors (see below), whose sum is σ = 44628654. Its totient is φ = 11141120.

The previous prime is 22298603. The next prime is 22298669. The reversal of 22298624 is 42689222.

It can be written as a sum of positive squares in only one way, i.e., 15745024 + 6553600 = 3968^2 + 2560^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15704 + ... + 17064.

Almost surely, 2^22298624 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22298624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22314327).

22298624 is an abundant number, since it is smaller than the sum of its proper divisors (22330030).

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

22298624 is an frugal number, since it uses more digits than its factorization.

22298624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389 (or 1363 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 22298624 is about 4722.1418868984. The cubic root of 22298624 is about 281.4660519979.

It can be divided in two parts, 22298 and 624, that added together give a palindrome (22922).

The spelling of 22298624 in words is "twenty-two million, two hundred ninety-eight thousand, six hundred twenty-four".