22440203 has 4 divisors (see below), whose sum is σ = 23415888. Its totient is φ = 21464520.

The previous prime is 22440179. The next prime is 22440239. The reversal of 22440203 is 30204422.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 22440203 - 2⁸ = 22439947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22440293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487808 + ... + 487853.

It is an arithmetic number, because the mean of its divisors is an integer number (5853972).

Almost surely, 2^22440203 is an apocalyptic number.

22440203 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22440203 is a deficient number, since it is larger than the sum of its proper divisors (975685).

22440203 is an equidigital number, since it uses as much as digits as its factorization.

22440203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975684.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 22440203 is about 4737.1091395491. The cubic root of 22440203 is about 282.0604928656.

Adding to 22440203 its reverse (30204422), we get a palindrome (52644625).

The spelling of 22440203 in words is "twenty-two million, four hundred forty thousand, two hundred three".