1244946773 has 12 divisors (see below), whose sum is σ = 1448826912. Its totient is φ = 1066637880.

The previous prime is 1244946761. The next prime is 1244946817. The reversal of 1244946773 is 3776494421.

It is not a de Polignac number, because 1244946773 - 2²⁸ = 976511317 is a prime.

It is a super-2 number, since 2×1244946773² = 3099784935206227058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244946973) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 160208 + ... + 167798.

It is an arithmetic number, because the mean of its divisors is an integer number (120735576).

Almost surely, 2^1244946773 is an apocalyptic number.

It is an amenable number.

1244946773 is a deficient number, since it is larger than the sum of its proper divisors (203880139).

1244946773 is an equidigital number, since it uses as much as digits as its factorization.

1244946773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10952 (or 10945 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 47.

The square root of 1244946773 is about 35283.8032672216. The cubic root of 1244946773 is about 1075.7638048952.

The spelling of 1244946773 in words is "one billion, two hundred forty-four million, nine hundred forty-six thousand, seven hundred seventy-three".