1144664404 has 48 divisors (see below), whose sum is σ = 2216712960. Its totient is φ = 513826560.

The previous prime is 1144664401. The next prime is 1144664407. The reversal of 1144664404 is 4044664411.

It is an interprime number because it is at equal distance from previous prime (1144664401) and next prime (1144664407).

It is a self number, because there is not a number n which added to its sum of digits gives 1144664404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144664401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 935337 + ... + 936559.

It is an arithmetic number, because the mean of its divisors is an integer number (46181520).

Almost surely, 2^1144664404 is an apocalyptic number.

It is an amenable number.

1144664404 is a deficient number, since it is larger than the sum of its proper divisors (1072048556).

1144664404 is a wasteful number, since it uses less digits than its factorization.

1144664404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720 (or 1718 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 34.

The square root of 1144664404 is about 33832.8893829658. The cubic root of 1144664404 is about 1046.0667369894.

The spelling of 1144664404 in words is "one billion, one hundred forty-four million, six hundred sixty-four thousand, four hundred four".