1244455012 has 24 divisors (see below), whose sum is σ = 2307191040. Its totient is φ = 585298560.

The previous prime is 1244455007. The next prime is 1244455021. The reversal of 1244455012 is 2105544421.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153189 + ... + 161107.

It is an arithmetic number, because the mean of its divisors is an integer number (96132960).

Almost surely, 2^1244455012 is an apocalyptic number.

It is an amenable number.

1244455012 is a deficient number, since it is larger than the sum of its proper divisors (1062736028).

1244455012 is a wasteful number, since it uses less digits than its factorization.

1244455012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10251 (or 10249 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 1244455012 is about 35276.8339282311. The cubic root of 1244455012 is about 1075.6221419834.

Adding to 1244455012 its reverse (2105544421), we get a palindrome (3349999433).

The spelling of 1244455012 in words is "one billion, two hundred forty-four million, four hundred fifty-five thousand, twelve".