1840222105 has 16 divisors (see below), whose sum is σ = 2329588800. Its totient is φ = 1391636160.

The previous prime is 1840222099. The next prime is 1840222123. The reversal of 1840222105 is 5012220481.

It is a de Polignac number, because none of the positive numbers 2^k-1840222105 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1840222105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22786 + ... + 64804.

It is an arithmetic number, because the mean of its divisors is an integer number (145599300).

Almost surely, 2^1840222105 is an apocalyptic number.

It is an amenable number.

1840222105 is a deficient number, since it is larger than the sum of its proper divisors (489366695).

1840222105 is a wasteful number, since it uses less digits than its factorization.

1840222105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42504.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 1840222105 is about 42897.8100256878. The cubic root of 1840222105 is about 1225.4344381644.

Adding to 1840222105 its reverse (5012220481), we get a palindrome (6852442586).

The spelling of 1840222105 in words is "one billion, eight hundred forty million, two hundred twenty-two thousand, one hundred five".