1144644 has 48 divisors (see below), whose sum is σ = 2935296. Its totient is φ = 345600.

The previous prime is 1144643. The next prime is 1144657. The reversal of 1144644 is 4464411.

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1144643) 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, 6234 + ... + 6414.

It is an arithmetic number, because the mean of its divisors is an integer number (61152).

2^1144644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1467648).

1144644 is an abundant number, since it is smaller than the sum of its proper divisors (1790652).

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

1144644 is a wasteful number, since it uses less digits than its factorization.

1144644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 234 counting only the distinct ones).

The product of its digits is 1536, while the sum is 24.

The square root of 1144644 is about 1069.8803671439. The cubic root of 1144644 is about 104.6060521464.

The spelling of 1144644 in words is "one million, one hundred forty-four thousand, six hundred forty-four".