22520246 has 16 divisors (see below), whose sum is σ = 38671776. Its totient is φ = 9635136.

The previous prime is 22520231. The next prime is 22520249. The reversal of 22520246 is 64202522.

It is a super-2 number, since 2×22520246² = 1014322959801032, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22520249) 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, 11060 + ... + 12936.

It is an arithmetic number, because the mean of its divisors is an integer number (2416986).

Almost surely, 2^22520246 is an apocalyptic number.

22520246 is a deficient number, since it is larger than the sum of its proper divisors (16151530).

22520246 is a wasteful number, since it uses less digits than its factorization.

22520246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2743.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 22520246 is about 4745.5501261708. The cubic root of 22520246 is about 282.3954597921.

Adding to 22520246 its reverse (64202522), we get a palindrome (86722768).

The spelling of 22520246 in words is "twenty-two million, five hundred twenty thousand, two hundred forty-six".