22313320 has 32 divisors (see below), whose sum is σ = 50342400. Its totient is φ = 8900928.

The previous prime is 22313303. The next prime is 22313321. The reversal of 22313320 is 2331322.

It is a super-3 number, since 3×22313320³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22313294 and 22313303.

It is not an unprimeable number, because it can be changed into a prime (22313321) 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, 23821 + ... + 24739.

It is an arithmetic number, because the mean of its divisors is an integer number (1573200).

Almost surely, 2^22313320 is an apocalyptic number.

22313320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22313320 is an abundant number, since it is smaller than the sum of its proper divisors (28029080).

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

22313320 is a wasteful number, since it uses less digits than its factorization.

22313320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1537 (or 1533 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 22313320 is about 4723.6977041297. The cubic root of 22313320 is about 281.5278722059.

Adding to 22313320 its reverse (2331322), we get a palindrome (24644642).

The spelling of 22313320 in words is "twenty-two million, three hundred thirteen thousand, three hundred twenty".