1208964864 has 36 divisors (see below), whose sum is σ = 3217611656. Its totient is φ = 402988032.

The previous prime is 1208964863. The next prime is 1208964907. The reversal of 1208964864 is 4684698021.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1208964863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 786319 + ... + 787854.

Almost surely, 2^1208964864 is an apocalyptic number.

It is an amenable number.

1208964864 is an abundant number, since it is smaller than the sum of its proper divisors (2008646792).

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

1208964864 is an equidigital number, since it uses as much as digits as its factorization.

1208964864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574192 (or 1574178 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The square root of 1208964864 is about 34770.1720444406. The cubic root of 1208964864 is about 1065.2982814135.

The spelling of 1208964864 in words is "one billion, two hundred eight million, nine hundred sixty-four thousand, eight hundred sixty-four".