1264264036 has 24 divisors (see below), whose sum is σ = 2571387840. Its totient is φ = 532643232.

The previous prime is 1264264033. The next prime is 1264264037. The reversal of 1264264036 is 6304624621.

It is a junction number, because it is equal to n+sod(n) for n = 1264263992 and 1264264010.

It is not an unprimeable number, because it can be changed into a prime (1264264033) 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, 380995 + ... + 384298.

It is an arithmetic number, because the mean of its divisors is an integer number (107141160).

Almost surely, 2^1264264036 is an apocalyptic number.

It is an amenable number.

1264264036 is an abundant number, since it is smaller than the sum of its proper divisors (1307123804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1264264036 is a wasteful number, since it uses less digits than its factorization.

1264264036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765363 (or 765361 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 1264264036 is about 35556.4907717283. The cubic root of 1264264036 is about 1081.2993152644.

Adding to 1264264036 its reverse (6304624621), we get a palindrome (7568888657).

The spelling of 1264264036 in words is "one billion, two hundred sixty-four million, two hundred sixty-four thousand, thirty-six".