2105623226 has 16 divisors (see below), whose sum is σ = 3693585984. Its totient is φ = 881423424.

The previous prime is 2105623217. The next prime is 2105623229. The reversal of 2105623226 is 6223265012.

It is not an unprimeable number, because it can be changed into a prime (2105623229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1748255 + ... + 1749458.

It is an arithmetic number, because the mean of its divisors is an integer number (230849124).

Almost surely, 2^2105623226 is an apocalyptic number.

2105623226 is a deficient number, since it is larger than the sum of its proper divisors (1587962758).

2105623226 is a wasteful number, since it uses less digits than its factorization.

2105623226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3497765.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 2105623226 is about 45887.0703575637. The cubic root of 2105623226 is about 1281.7211599361.

Adding to 2105623226 its reverse (6223265012), we get a palindrome (8328888238).

The spelling of 2105623226 in words is "two billion, one hundred five million, six hundred twenty-three thousand, two hundred twenty-six".