1244445662 has 16 divisors (see below), whose sum is σ = 1989569952.
Its totient is φ = 581740800.
The previous prime is 1244445661. The next prime is 1244445707. The reversal of 1244445662 is 2665444421.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1244445661) 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, 116063 + ... + 126330.
It is an arithmetic number, because the mean of its divisors is an integer number (124348122).
Almost surely, 21244445662 is an apocalyptic number.
1244445662 is a deficient number, since it is larger than the sum of its proper divisors (745124290).
1244445662 is a wasteful number, since it uses less digits than its factorization.
1244445662 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 242563.
The product of its digits is 184320, while the sum is 38.
The square root of 1244445662 is about 35276.7014047516.
The cubic root of 1244445662 is about 1075.6194481423.
The spelling of 1244445662 in words is "one billion, two hundred forty-four million, four hundred forty-five thousand, six hundred sixty-two".