22440246 has 16 divisors (see below), whose sum is σ = 44928000. Its totient is φ = 7472168.

The previous prime is 22440239. The next prime is 22440247. The reversal of 22440246 is 64204422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22440247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8155 + ... + 10553.

It is an arithmetic number, because the mean of its divisors is an integer number (2808000).

Almost surely, 2^22440246 is an apocalyptic number.

22440246 is an abundant number, since it is smaller than the sum of its proper divisors (22487754).

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

22440246 is a wasteful number, since it uses less digits than its factorization.

22440246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3963.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 22440246 is about 4737.1136781800. The cubic root of 22440246 is about 282.0606730273.

Adding to 22440246 its reverse (64204422), we get a palindrome (86644668).

It can be divided in two parts, 224 and 40246, that added together give a triangular number (40470 = T₂₈₄).

The spelling of 22440246 in words is "twenty-two million, four hundred forty thousand, two hundred forty-six".