22497672 has 64 divisors (see below), whose sum is σ = 59904000. Its totient is φ = 7020864.

The previous prime is 22497637. The next prime is 22497677. The reversal of 22497672 is 27679422.

It is a super-2 number, since 2×22497672² = 1012290490839168, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 22497672.

It is not an unprimeable number, because it can be changed into a prime (22497677) 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 15 ways as a sum of consecutive naturals, for example, 46729 + ... + 47207.

It is an arithmetic number, because the mean of its divisors is an integer number (936000).

Almost surely, 2^22497672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22497672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29952000).

22497672 is an abundant number, since it is smaller than the sum of its proper divisors (37406328).

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

22497672 is a wasteful number, since it uses less digits than its factorization.

22497672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610 (or 606 counting only the distinct ones).

The product of its digits is 84672, while the sum is 39.

The square root of 22497672 is about 4743.1710911583. The cubic root of 22497672 is about 282.3010717424.

The spelling of 22497672 in words is "twenty-two million, four hundred ninety-seven thousand, six hundred seventy-two".