1264137824 has 24 divisors (see below), whose sum is σ = 2495361960. Its totient is φ = 630395136.

The previous prime is 1264137769. The next prime is 1264137829. The reversal of 1264137824 is 4287314621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264137829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39989 + ... + 64244.

It is an arithmetic number, because the mean of its divisors is an integer number (103973415).

Almost surely, 2^1264137824 is an apocalyptic number.

It is an amenable number.

1264137824 is a deficient number, since it is larger than the sum of its proper divisors (1231224136).

1264137824 is a wasteful number, since it uses less digits than its factorization.

1264137824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104622 (or 104614 counting only the distinct ones).

The product of its digits is 64512, while the sum is 38.

The square root of 1264137824 is about 35554.7159178638. The cubic root of 1264137824 is about 1081.2633318815.

The spelling of 1264137824 in words is "one billion, two hundred sixty-four million, one hundred thirty-seven thousand, eight hundred twenty-four".