222540045 has 48 divisors (see below), whose sum is σ = 440675712. Its totient is φ = 93899520.

The previous prime is 222540037. The next prime is 222540061. The reversal of 222540045 is 540045222.

It is a happy number.

It is not a de Polignac number, because 222540045 - 2³ = 222540037 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 222539997 and 222540024.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11475 + ... + 24015.

It is an arithmetic number, because the mean of its divisors is an integer number (9180744).

Almost surely, 2^222540045 is an apocalyptic number.

It is an amenable number.

222540045 is a deficient number, since it is larger than the sum of its proper divisors (218135667).

222540045 is a wasteful number, since it uses less digits than its factorization.

222540045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12582 (or 12569 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 222540045 is about 14917.7761412350. The cubic root of 222540045 is about 605.9954878815.

Adding to 222540045 its reverse (540045222), we get a palindrome (762585267).

The spelling of 222540045 in words is "two hundred twenty-two million, five hundred forty thousand, forty-five".