22003032 has 64 divisors (see below), whose sum is σ = 58752000. Its totient is φ = 6842880.

The previous prime is 22003027. The next prime is 22003039. The reversal of 22003032 is 23030022.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 22002999 and 22003017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22003039) 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, 81057 + ... + 81327.

It is an arithmetic number, because the mean of its divisors is an integer number (918000).

Almost surely, 2^22003032 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 22003032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29376000).

22003032 is an abundant number, since it is smaller than the sum of its proper divisors (36748968).

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

22003032 is a wasteful number, since it uses less digits than its factorization.

22003032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496 (or 492 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 22003032 is about 4690.7389609741. The cubic root of 22003032 is about 280.2168048731.

Adding to 22003032 its reverse (23030022), we get a palindrome (45033054).

The spelling of 22003032 in words is "twenty-two million, three thousand, thirty-two".