1144424 has 8 divisors (see below), whose sum is σ = 2145810. Its totient is φ = 572208.

The previous prime is 1144417. The next prime is 1144439. The reversal of 1144424 is 4244411.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 611524 + 532900 = 782^2 + 730^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1144396 and 1144405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71519 + ... + 71534.

2^1144424 is an apocalyptic number.

It is an amenable number.

1144424 is a deficient number, since it is larger than the sum of its proper divisors (1001386).

1144424 is a wasteful number, since it uses less digits than its factorization.

1144424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143059 (or 143055 counting only the distinct ones).

The product of its digits is 512, while the sum is 20.

The square root of 1144424 is about 1069.7775469695. Note that the first 3 decimals coincide. The cubic root of 1144424 is about 104.5993499735.

Adding to 1144424 its reverse (4244411), we get a palindrome (5388835).

The spelling of 1144424 in words is "one million, one hundred forty-four thousand, four hundred twenty-four".