22301320 has 16 divisors (see below), whose sum is σ = 50178060. Its totient is φ = 8920512.

The previous prime is 22301317. The next prime is 22301339. The reversal of 22301320 is 2310322.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22221796 + 79524 = 4714^2 + 282^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22301320.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278727 + ... + 278806.

Almost surely, 2^22301320 is an apocalyptic number.

22301320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22301320 is an abundant number, since it is smaller than the sum of its proper divisors (27876740).

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

22301320 is a wasteful number, since it uses less digits than its factorization.

22301320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557544 (or 557540 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 22301320 is about 4722.4273419503. The cubic root of 22301320 is about 281.4773950281.

Adding to 22301320 its reverse (2310322), we get a palindrome (24611642).

The spelling of 22301320 in words is "twenty-two million, three hundred one thousand, three hundred twenty".