1144264 has 16 divisors (see below), whose sum is σ = 2340720. Its totient is φ = 520080.

The previous prime is 1144261. The next prime is 1144271. The reversal of 1144264 is 4624411.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1144261) 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, 6414 + ... + 6589.

It is an arithmetic number, because the mean of its divisors is an integer number (146295).

2^1144264 is an apocalyptic number.

It is an amenable number.

1144264 is an abundant number, since it is smaller than the sum of its proper divisors (1196456).

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

1144264 is a wasteful number, since it uses less digits than its factorization.

1144264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13020 (or 13016 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 1144264 is about 1069.7027624532. The cubic root of 1144264 is about 104.5944751264.

Adding to 1144264 its reverse (4624411), we get a palindrome (5768675).

The spelling of 1144264 in words is "one million, one hundred forty-four thousand, two hundred sixty-four".