1264235552 has 48 divisors (see below), whose sum is σ = 2574254592. Its totient is φ = 610536960.

The previous prime is 1264235551. The next prime is 1264235569. The reversal of 1264235552 is 2555324621.

It is not an unprimeable number, because it can be changed into a prime (1264235551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 720308 + ... + 722060.

It is an arithmetic number, because the mean of its divisors is an integer number (53630304).

Almost surely, 2^1264235552 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 1264235552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1287127296).

1264235552 is an abundant number, since it is smaller than the sum of its proper divisors (1310019040).

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

1264235552 is a wasteful number, since it uses less digits than its factorization.

1264235552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2521 (or 2513 counting only the distinct ones).

The product of its digits is 72000, while the sum is 35.

The square root of 1264235552 is about 35556.0902237577. The cubic root of 1264235552 is about 1081.2911946081.

The spelling of 1264235552 in words is "one billion, two hundred sixty-four million, two hundred thirty-five thousand, five hundred fifty-two".