222040445 has 24 divisors (see below), whose sum is σ = 302346240. Its totient is φ = 156261600.

The previous prime is 222040411. The next prime is 222040457. The reversal of 222040445 is 544040222.

It is not a de Polignac number, because 222040445 - 2¹² = 222036349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222040445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12836 + ... + 24674.

It is an arithmetic number, because the mean of its divisors is an integer number (12597760).

Almost surely, 2^222040445 is an apocalyptic number.

It is an amenable number.

222040445 is a deficient number, since it is larger than the sum of its proper divisors (80305795).

222040445 is a wasteful number, since it uses less digits than its factorization.

222040445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11897 (or 11886 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 222040445 is about 14901.0216092723. The cubic root of 222040445 is about 605.5416636577.

Adding to 222040445 its reverse (544040222), we get a palindrome (766080667).

The spelling of 222040445 in words is "two hundred twenty-two million, forty thousand, four hundred forty-five".