222542403 has 4 divisors (see below), whose sum is σ = 296723208. Its totient is φ = 148361600.

The previous prime is 222542311. The next prime is 222542413. The reversal of 222542403 is 304245222.

It is a happy number.

222542403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 222542403 - 2¹⁰ = 222541379 is a prime.

It is a super-2 number, since 2×222542403² = 99050242266028818, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222542413) 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, 37090398 + ... + 37090403.

It is an arithmetic number, because the mean of its divisors is an integer number (74180802).

Almost surely, 2^222542403 is an apocalyptic number.

222542403 is a deficient number, since it is larger than the sum of its proper divisors (74180805).

222542403 is an equidigital number, since it uses as much as digits as its factorization.

222542403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74180804.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 222542403 is about 14917.8551742534. The cubic root of 222542403 is about 605.9976282189.

Adding to 222542403 its reverse (304245222), we get a palindrome (526787625).

The spelling of 222542403 in words is "two hundred twenty-two million, five hundred forty-two thousand, four hundred three".