222402445 has 8 divisors (see below), whose sum is σ = 267726744. Its totient is φ = 177359424.

The previous prime is 222402437. The next prime is 222402451. The reversal of 222402445 is 544204222.

222402445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 31382404 + 191020041 = 5602^2 + 13821^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222402445 - 2³ = 222402437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68574 + ... + 71743.

It is an arithmetic number, because the mean of its divisors is an integer number (33465843).

Almost surely, 2^222402445 is an apocalyptic number.

It is an amenable number.

222402445 is a deficient number, since it is larger than the sum of its proper divisors (45324299).

222402445 is a wasteful number, since it uses less digits than its factorization.

222402445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140639.

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 222402445 is about 14913.1634806301. The cubic root of 222402445 is about 605.8705632923.

Adding to 222402445 its reverse (544204222), we get a palindrome (766606667).

The spelling of 222402445 in words is "two hundred twenty-two million, four hundred two thousand, four hundred forty-five".