1264408464 has 80 divisors (see below), whose sum is σ = 3646266624. Its totient is φ = 374236800.

The previous prime is 1264408459. The next prime is 1264408477. The reversal of 1264408464 is 4648044621.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5142 + ... + 50549.

Almost surely, 2^1264408464 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 1264408464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1823133312).

1264408464 is an abundant number, since it is smaller than the sum of its proper divisors (2381858160).

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

1264408464 is a wasteful number, since it uses less digits than its factorization.

1264408464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55756 (or 55750 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 39.

The square root of 1264408464 is about 35558.5216790575. The cubic root of 1264408464 is about 1081.3404891401.

The spelling of 1264408464 in words is "one billion, two hundred sixty-four million, four hundred eight thousand, four hundred sixty-four".