3440040433 has 4 divisors (see below), whose sum is σ = 3444948468. Its totient is φ = 3435132400.

The previous prime is 3440040431. The next prime is 3440040449. The reversal of 3440040433 is 3340400443.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1243056049 + 2196984384 = 35257^2 + 46872^2 .

It is a cyclic number.

It is not a de Polignac number, because 3440040433 - 2¹ = 3440040431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3440040398 and 3440040407.

It is not an unprimeable number, because it can be changed into a prime (3440040431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2452966 + ... + 2454367.

It is an arithmetic number, because the mean of its divisors is an integer number (861237117).

Almost surely, 2^3440040433 is an apocalyptic number.

It is an amenable number.

3440040433 is a deficient number, since it is larger than the sum of its proper divisors (4908035).

3440040433 is an equidigital number, since it uses as much as digits as its factorization.

3440040433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4908034.

The product of its (nonzero) digits is 6912, while the sum is 25.

The square root of 3440040433 is about 58651.8578819120. The cubic root of 3440040433 is about 1509.5743772124.

Adding to 3440040433 its reverse (3340400443), we get a palindrome (6780440876).

The spelling of 3440040433 in words is "three billion, four hundred forty million, forty thousand, four hundred thirty-three".