22032003 has 8 divisors (see below), whose sum is σ = 33572608. Its totient is φ = 12589704.

The previous prime is 22031993. The next prime is 22032007. The reversal of 22032003 is 30023022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22032003 - 2⁸ = 22031747 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22032003.

It is not an unprimeable number, because it can be changed into a prime (22032007) 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, 524551 + ... + 524592.

It is an arithmetic number, because the mean of its divisors is an integer number (4196576).

Almost surely, 2^22032003 is an apocalyptic number.

22032003 is a deficient number, since it is larger than the sum of its proper divisors (11540605).

22032003 is a wasteful number, since it uses less digits than its factorization.

22032003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049153.

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

The square root of 22032003 is about 4693.8260513146. The cubic root of 22032003 is about 280.3397364255.

Adding to 22032003 its reverse (30023022), we get a palindrome (52055025).

It can be divided in two parts, 220 and 32003, that added together give a palindrome (32223).

The spelling of 22032003 in words is "twenty-two million, thirty-two thousand, three".