1264331336 has 16 divisors (see below), whose sum is σ = 2383721340. Its totient is φ = 628672320.

The previous prime is 1264331333. The next prime is 1264331347. The reversal of 1264331336 is 6331334621.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1129632100 + 134699236 = 33610^2 + 11606^2 .

It is not an unprimeable number, because it can be changed into a prime (1264331333) 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, 435131 + ... + 438026.

Almost surely, 2^1264331336 is an apocalyptic number.

It is an amenable number.

1264331336 is a deficient number, since it is larger than the sum of its proper divisors (1119390004).

1264331336 is a wasteful number, since it uses less digits than its factorization.

1264331336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873344 (or 873340 counting only the distinct ones).

The product of its digits is 23328, while the sum is 32.

The square root of 1264331336 is about 35557.4371404914. The cubic root of 1264331336 is about 1081.3185016977.

Adding to 1264331336 its reverse (6331334621), we get a palindrome (7595665957).

The spelling of 1264331336 in words is "one billion, two hundred sixty-four million, three hundred thirty-one thousand, three hundred thirty-six".