4540222 has 4 divisors (see below), whose sum is σ = 6810336. Its totient is φ = 2270110.

The previous prime is 4540219. The next prime is 4540231. The reversal of 4540222 is 2220454.

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

It is a super-2 number, since 2×4540222² = 41227231618568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4540222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1135054 + ... + 1135057.

It is an arithmetic number, because the mean of its divisors is an integer number (1702584).

Almost surely, 2^4540222 is an apocalyptic number.

4540222 is a deficient number, since it is larger than the sum of its proper divisors (2270114).

4540222 is a wasteful number, since it uses less digits than its factorization.

4540222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2270113.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 4540222 is about 2130.7796695107. The cubic root of 4540222 is about 165.5867934655.

Adding to 4540222 its reverse (2220454), we get a palindrome (6760676).

The spelling of 4540222 in words is "four million, five hundred forty thousand, two hundred twenty-two".