1264105722 has 64 divisors (see below), whose sum is σ = 2794176000. Its totient is φ = 378081600.

The previous prime is 1264105709. The next prime is 1264105723. The reversal of 1264105722 is 2275014621.

It is a self number, because there is not a number n which added to its sum of digits gives 1264105722.

It is not an unprimeable number, because it can be changed into a prime (1264105723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2533029 + ... + 2533527.

It is an arithmetic number, because the mean of its divisors is an integer number (43659000).

Almost surely, 2^1264105722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1264105722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1397088000).

1264105722 is an abundant number, since it is smaller than the sum of its proper divisors (1530070278).

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

1264105722 is a wasteful number, since it uses less digits than its factorization.

1264105722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 1264105722 is about 35554.2644699620. The cubic root of 1264105722 is about 1081.2541791323.

The spelling of 1264105722 in words is "one billion, two hundred sixty-four million, one hundred five thousand, seven hundred twenty-two".