22207464 has 24 divisors (see below), whose sum is σ = 60145410. Its totient is φ = 7402464.

The previous prime is 22207421. The next prime is 22207481. The reversal of 22207464 is 46470222.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12659364 + 9548100 = 3558^2 + 3090^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×22207464² = 986342914622592, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 154147 + ... + 154290.

Almost surely, 2^22207464 is an apocalyptic number.

22207464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22207464 is an abundant number, since it is smaller than the sum of its proper divisors (37937946).

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

22207464 is a wasteful number, since it uses less digits than its factorization.

22207464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308449 (or 308442 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 22207464 is about 4712.4796020779. The cubic root of 22207464 is about 281.0819701508.

Adding to 22207464 its reverse (46470222), we get a palindrome (68677686).

The spelling of 22207464 in words is "twenty-two million, two hundred seven thousand, four hundred sixty-four".