1264042244 has 12 divisors (see below), whose sum is σ = 2248337868. Its totient is φ = 621660000.

The previous prime is 1264042223. The next prime is 1264042249. The reversal of 1264042244 is 4422404621.

It can be written as a sum of positive squares in 2 ways, for example, as 551686144 + 712356100 = 23488^2 + 26690^2 .

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1264042249) 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 3 ways as a sum of consecutive naturals, for example, 2590007 + ... + 2590494.

It is an arithmetic number, because the mean of its divisors is an integer number (187361489).

Almost surely, 2^1264042244 is an apocalyptic number.

It is an amenable number.

1264042244 is a deficient number, since it is larger than the sum of its proper divisors (984295624).

1264042244 is a wasteful number, since it uses less digits than its factorization.

1264042244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5180566 (or 5180564 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

The square root of 1264042244 is about 35553.3717669647. The cubic root of 1264042244 is about 1081.2360801710.

Adding to 1264042244 its reverse (4422404621), we get a palindrome (5686446865).

The spelling of 1264042244 in words is "one billion, two hundred sixty-four million, forty-two thousand, two hundred forty-four".