22302312 has 32 divisors (see below), whose sum is σ = 56107680. Its totient is φ = 7387200.

The previous prime is 22302311. The next prime is 22302353. The reversal of 22302312 is 21320322.

It is a junction number, because it is equal to n+sod(n) for n = 22302291 and 22302300.

It is not an unprimeable number, because it can be changed into a prime (22302311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1062 + ... + 6762.

It is an arithmetic number, because the mean of its divisors is an integer number (1753365).

Almost surely, 2^22302312 is an apocalyptic number.

It is an amenable number.

22302312 is an abundant number, since it is smaller than the sum of its proper divisors (33805368).

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

22302312 is a wasteful number, since it uses less digits than its factorization.

22302312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5873 (or 5869 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 22302312 is about 4722.5323715142. The cubic root of 22302312 is about 281.4815684946.

Adding to 22302312 its reverse (21320322), we get a palindrome (43622634).

The spelling of 22302312 in words is "twenty-two million, three hundred two thousand, three hundred twelve".