1264756548 has 96 divisors (see below), whose sum is σ = 3427256448. Its totient is φ = 358758400.

The previous prime is 1264756547. The next prime is 1264756567. The reversal of 1264756548 is 8456574621.

It is a junction number, because it is equal to n+sod(n) for n = 1264756497 and 1264756506.

It is not an unprimeable number, because it can be changed into a prime (1264756547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 440638 + ... + 443498.

It is an arithmetic number, because the mean of its divisors is an integer number (35700588).

Almost surely, 2^1264756548 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 1264756548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1713628224).

1264756548 is an abundant number, since it is smaller than the sum of its proper divisors (2162499900).

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

1264756548 is a wasteful number, since it uses less digits than its factorization.

1264756548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3093 (or 3091 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 48.

The square root of 1264756548 is about 35563.4158651837. The cubic root of 1264756548 is about 1081.4397088672.

The spelling of 1264756548 in words is "one billion, two hundred sixty-four million, seven hundred fifty-six thousand, five hundred forty-eight".