22307372 has 12 divisors (see below), whose sum is σ = 39088560. Its totient is φ = 11139216.

The previous prime is 22307357. The next prime is 22307377. The reversal of 22307372 is 27370322.

It is a super-3 number, since 3×22307372³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22307377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329 + ... + 6687.

It is an arithmetic number, because the mean of its divisors is an integer number (3257380).

Almost surely, 2^22307372 is an apocalyptic number.

It is an amenable number.

22307372 is a deficient number, since it is larger than the sum of its proper divisors (16781188).

22307372 is a wasteful number, since it uses less digits than its factorization.

22307372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7240 (or 7238 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 26.

The square root of 22307372 is about 4723.0680706507. The cubic root of 22307372 is about 281.5028546140.

Adding to 22307372 its reverse (27370322), we get a palindrome (49677694).

The spelling of 22307372 in words is "twenty-two million, three hundred seven thousand, three hundred seventy-two".