22242403 has 4 divisors (see below), whose sum is σ = 23209488. Its totient is φ = 21275320.

The previous prime is 22242401. The next prime is 22242419. The reversal of 22242403 is 30424222.

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

It is a cyclic number.

It is not a de Polignac number, because 22242403 - 2¹ = 22242401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22242401) 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, 483508 + ... + 483553.

It is an arithmetic number, because the mean of its divisors is an integer number (5802372).

Almost surely, 2^22242403 is an apocalyptic number.

22242403 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22242403 is a deficient number, since it is larger than the sum of its proper divisors (967085).

22242403 is an equidigital number, since it uses as much as digits as its factorization.

22242403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967084.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 22242403 is about 4716.1852168888. The cubic root of 22242403 is about 281.2293016537.

Adding to 22242403 its reverse (30424222), we get a palindrome (52666625).

The spelling of 22242403 in words is "twenty-two million, two hundred forty-two thousand, four hundred three".