1264053660 has 48 divisors (see below), whose sum is σ = 3725635200. Its totient is φ = 319339584.

The previous prime is 1264053647. The next prime is 1264053677. The reversal of 1264053660 is 663504621.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 553270 + ... + 555549.

It is an arithmetic number, because the mean of its divisors is an integer number (77617400).

Almost surely, 2^1264053660 is an apocalyptic number.

1264053660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1264053660 is an abundant number, since it is smaller than the sum of its proper divisors (2461581540).

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

1264053660 is a wasteful number, since it uses less digits than its factorization.

1264053660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108850 (or 1108848 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 1264053660 is about 35553.5323139628. The cubic root of 1264053660 is about 1081.2393351661.

The spelling of 1264053660 in words is "one billion, two hundred sixty-four million, fifty-three thousand, six hundred sixty".