1264241688 has 16 divisors (see below), whose sum is σ = 3160604280. Its totient is φ = 421413888.

The previous prime is 1264241687. The next prime is 1264241717. The reversal of 1264241688 is 8861424621.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264241687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26338345 + ... + 26338392.

Almost surely, 2^1264241688 is an apocalyptic number.

It is an amenable number.

1264241688 is an abundant number, since it is smaller than the sum of its proper divisors (1896362592).

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

1264241688 is a wasteful number, since it uses less digits than its factorization.

1264241688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52676746 (or 52676742 counting only the distinct ones).

The product of its digits is 147456, while the sum is 42.

The square root of 1264241688 is about 35556.1765098555. The cubic root of 1264241688 is about 1081.2929439636.

The spelling of 1264241688 in words is "one billion, two hundred sixty-four million, two hundred forty-one thousand, six hundred eighty-eight".