1144400433 has 32 divisors (see below), whose sum is σ = 1750781952. Its totient is φ = 658507200.

The previous prime is 1144400377. The next prime is 1144400437. The reversal of 1144400433 is 3340044411.

It is not a de Polignac number, because 1144400433 - 2¹³ = 1144392241 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1144400437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43666 + ... + 64772.

It is an arithmetic number, because the mean of its divisors is an integer number (54711936).

Almost surely, 2^1144400433 is an apocalyptic number.

It is an amenable number.

1144400433 is a deficient number, since it is larger than the sum of its proper divisors (606381519).

1144400433 is a wasteful number, since it uses less digits than its factorization.

1144400433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21205.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1144400433 is about 33828.9880575816. The cubic root of 1144400433 is about 1045.9863196750.

Adding to 1144400433 its reverse (3340044411), we get a palindrome (4484444844).

It can be divided in two parts, 11 and 44400433, that added together give a palindrome (44400444).

The spelling of 1144400433 in words is "one billion, one hundred forty-four million, four hundred thousand, four hundred thirty-three".