1264034688 has 64 divisors (see below), whose sum is σ = 3837256320. Its totient is φ = 361152000.

The previous prime is 1264034669. The next prime is 1264034699. The reversal of 1264034688 is 8864304621.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232438 + ... + 237813.

It is an arithmetic number, because the mean of its divisors is an integer number (59957130).

Almost surely, 2^1264034688 is an apocalyptic number.

It is an amenable number.

1264034688 is an abundant number, since it is smaller than the sum of its proper divisors (2573221632).

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

1264034688 is an equidigital number, since it uses as much as digits as its factorization.

1264034688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470275 (or 470263 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 1264034688 is about 35553.2655040293. The cubic root of 1264034688 is about 1081.2339257503.

The spelling of 1264034688 in words is "one billion, two hundred sixty-four million, thirty-four thousand, six hundred eighty-eight".