22736004 has 48 divisors (see below), whose sum is σ = 57153600. Its totient is φ = 7008256.

The previous prime is 22736003. The next prime is 22736011. The reversal of 22736004 is 40063722.

It is not an unprimeable number, because it can be changed into a prime (22736003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11092 + ... + 12980.

It is an arithmetic number, because the mean of its divisors is an integer number (1190700).

Almost surely, 2^22736004 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 22736004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28576800).

22736004 is an abundant number, since it is smaller than the sum of its proper divisors (34417596).

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

22736004 is a wasteful number, since it uses less digits than its factorization.

22736004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972 (or 1970 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 22736004 is about 4768.2286019024. The cubic root of 22736004 is about 283.2944364904.

Adding to 22736004 its reverse (40063722), we get a palindrome (62799726).

The spelling of 22736004 in words is "twenty-two million, seven hundred thirty-six thousand, four".