22540203 has 12 divisors (see below), whose sum is σ = 37209328. Its totient is φ = 12880080.

The previous prime is 22540169. The next prime is 22540237. The reversal of 22540203 is 30204522.

It is an interprime number because it is at equal distance from previous prime (22540169) and next prime (22540237).

It is not a de Polignac number, because 22540203 - 2¹⁶ = 22474667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22540003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178828 + ... + 178953.

Almost surely, 2^22540203 is an apocalyptic number.

22540203 is a deficient number, since it is larger than the sum of its proper divisors (14669125).

22540203 is a wasteful number, since it uses less digits than its factorization.

22540203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357794 (or 357791 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 22540203 is about 4747.6523672232. The cubic root of 22540203 is about 282.4788529345.

Adding to 22540203 its reverse (30204522), we get a palindrome (52744725).

It can be divided in two parts, 22 and 540203, that added together give a square (540225 = 735²).

The spelling of 22540203 in words is "twenty-two million, five hundred forty thousand, two hundred three".