1164644 has 12 divisors (see below), whose sum is σ = 2195004. Its totient is φ = 537504.

The previous prime is 1164641. The next prime is 1164659. The reversal of 1164644 is 4464611.

It can be written as a sum of positive squares in 2 ways, for example, as 702244 + 462400 = 838^2 + 680^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (1164641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11147 + ... + 11250.

It is an arithmetic number, because the mean of its divisors is an integer number (182917).

2^1164644 is an apocalyptic number.

It is an amenable number.

1164644 is a deficient number, since it is larger than the sum of its proper divisors (1030360).

1164644 is a wasteful number, since it uses less digits than its factorization.

1164644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22414 (or 22412 counting only the distinct ones).

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

The square root of 1164644 is about 1079.1867308302. The cubic root of 1164644 is about 105.2117871972.

The spelling of 1164644 in words is "one million, one hundred sixty-four thousand, six hundred forty-four".