1144664 has 16 divisors (see below), whose sum is σ = 2239920. Its totient is φ = 547360.

The previous prime is 1144657. The next prime is 1144667. The reversal of 1144664 is 4664411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144667) 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, 2927 + ... + 3294.

It is an arithmetic number, because the mean of its divisors is an integer number (139995).

2^1144664 is an apocalyptic number.

It is an amenable number.

1144664 is a deficient number, since it is larger than the sum of its proper divisors (1095256).

1144664 is a wasteful number, since it uses less digits than its factorization.

1144664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6250 (or 6246 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 1144664 is about 1069.8897139425. The cubic root of 1144664 is about 104.6066613922.

The spelling of 1144664 in words is "one million, one hundred forty-four thousand, six hundred sixty-four".