22436004 has 24 divisors (see below), whose sum is σ = 52557120. Its totient is φ = 7449184.

The previous prime is 22435991. The next prime is 22436009. The reversal of 22436004 is 40063422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22436009) 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 7 ways as a sum of consecutive naturals, for example, 399 + ... + 6710.

It is an arithmetic number, because the mean of its divisors is an integer number (2189880).

Almost surely, 2^22436004 is an apocalyptic number.

It is an amenable number.

22436004 is an abundant number, since it is smaller than the sum of its proper divisors (30121116).

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

22436004 is a wasteful number, since it uses less digits than its factorization.

22436004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7379 (or 7377 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 22436004 is about 4736.6659160215. The cubic root of 22436004 is about 282.0428987602.

Adding to 22436004 its reverse (40063422), we get a palindrome (62499426).

The spelling of 22436004 in words is "twenty-two million, four hundred thirty-six thousand, four".