22452530 has 8 divisors (see below), whose sum is σ = 40414572. Its totient is φ = 8981008.

The previous prime is 22452527. The next prime is 22452533. The reversal of 22452530 is 3525422.

It is an interprime number because it is at equal distance from previous prime (22452527) and next prime (22452533).

It can be written as a sum of positive squares in 2 ways, for example, as 21724921 + 727609 = 4661^2 + 853^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×22452530² = 1008232206801800, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22452496 and 22452505.

It is not an unprimeable number, because it can be changed into a prime (22452533) 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, 1122617 + ... + 1122636.

Almost surely, 2^22452530 is an apocalyptic number.

22452530 is a deficient number, since it is larger than the sum of its proper divisors (17962042).

22452530 is a wasteful number, since it uses less digits than its factorization.

22452530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245260.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 22452530 is about 4738.4100708993. The cubic root of 22452530 is about 282.1121311868.

Adding to 22452530 its reverse (3525422), we get a palindrome (25977952).

The spelling of 22452530 in words is "twenty-two million, four hundred fifty-two thousand, five hundred thirty".