22305260 has 48 divisors (see below), whose sum is σ = 48746880. Its totient is φ = 8567040.

The previous prime is 22305251. The next prime is 22305277. The reversal of 22305260 is 6250322.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 57146 + ... + 57534.

It is an arithmetic number, because the mean of its divisors is an integer number (1015560).

Almost surely, 2^22305260 is an apocalyptic number.

22305260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22305260 is an abundant number, since it is smaller than the sum of its proper divisors (26441620).

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

22305260 is a wasteful number, since it uses less digits than its factorization.

22305260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506 (or 504 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 22305260 is about 4722.8444818774. The cubic root of 22305260 is about 281.4939703643.

Adding to 22305260 its reverse (6250322), we get a palindrome (28555582).

The spelling of 22305260 in words is "twenty-two million, three hundred five thousand, two hundred sixty".