1264013372 has 12 divisors (see below), whose sum is σ = 2288300280. Its totient is φ = 610213296.

The previous prime is 1264013371. The next prime is 1264013389. The reversal of 1264013372 is 2733104621.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264013371) 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, 5448218 + ... + 5448449.

It is an arithmetic number, because the mean of its divisors is an integer number (190691690).

Almost surely, 2^1264013372 is an apocalyptic number.

It is an amenable number.

1264013372 is a deficient number, since it is larger than the sum of its proper divisors (1024286908).

1264013372 is a wasteful number, since it uses less digits than its factorization.

1264013372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10896700 (or 10896698 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 1264013372 is about 35552.9657272076. The cubic root of 1264013372 is about 1081.2278479340.

Adding to 1264013372 its reverse (2733104621), we get a palindrome (3997117993).

The spelling of 1264013372 in words is "one billion, two hundred sixty-four million, thirteen thousand, three hundred seventy-two".