1244692226 has 4 divisors (see below), whose sum is σ = 1867038342. Its totient is φ = 622346112.

The previous prime is 1244692171. The next prime is 1244692237. The reversal of 1244692226 is 6222964421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1242633001 + 2059225 = 35251^2 + 1435^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1244692226.

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 as a sum of consecutive naturals, namely, 311173055 + ... + 311173058.

Almost surely, 2^1244692226 is an apocalyptic number.

1244692226 is a deficient number, since it is larger than the sum of its proper divisors (622346116).

1244692226 is an equidigital number, since it uses as much as digits as its factorization.

1244692226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622346115.

The product of its digits is 82944, while the sum is 38.

The square root of 1244692226 is about 35280.1959461679. The cubic root of 1244692226 is about 1075.6904815157.

The spelling of 1244692226 in words is "one billion, two hundred forty-four million, six hundred ninety-two thousand, two hundred twenty-six".