1324775872 has 56 divisors (see below), whose sum is σ = 3021945696. Its totient is φ = 564446208.

The previous prime is 1324775869. The next prime is 1324775927. The reversal of 1324775872 is 2785774231.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×1324775872² = 3510062222066720768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 68958 + ... + 86050.

It is an arithmetic number, because the mean of its divisors is an integer number (53963316).

Almost surely, 2^1324775872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1324775872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1510972848).

1324775872 is an abundant number, since it is smaller than the sum of its proper divisors (1697169824).

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

1324775872 is a wasteful number, since it uses less digits than its factorization.

1324775872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17285 (or 17275 counting only the distinct ones).

The product of its digits is 658560, while the sum is 46.

The square root of 1324775872 is about 36397.4706813537. The cubic root of 1324775872 is about 1098.2826845167.

The spelling of 1324775872 in words is "one billion, three hundred twenty-four million, seven hundred seventy-five thousand, eight hundred seventy-two".