1144664004 has 24 divisors (see below), whose sum is σ = 2913690528. Its totient is φ = 346867840.

The previous prime is 1144663981. The next prime is 1144664021. The reversal of 1144664004 is 4004664411.

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, 4335717 + ... + 4335980.

It is an arithmetic number, because the mean of its divisors is an integer number (121403772).

Almost surely, 2^1144664004 is an apocalyptic number.

It is an amenable number.

1144664004 is an abundant number, since it is smaller than the sum of its proper divisors (1769026524).

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

1144664004 is a wasteful number, since it uses less digits than its factorization.

1144664004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8671715 (or 8671713 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 1144664004 is about 33832.8834715577. The cubic root of 1144664004 is about 1046.0666151409.

The spelling of 1144664004 in words is "one billion, one hundred forty-four million, six hundred sixty-four thousand, four".