440030130433 has 4 divisors (see below), whose sum is σ = 442461236308. Its totient is φ = 437599024560.

The previous prime is 440030130403. The next prime is 440030130461. The reversal of 440030130433 is 334031030044.

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 110820412609 + 329209717824 = 332897^2 + 573768^2 .

It is a cyclic number.

It is not a de Polignac number, because 440030130433 - 2²⁵ = 439996576001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 440030130398 and 440030130407.

It is not an unprimeable number, because it can be changed into a prime (440030130403) 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, 1215552666 + ... + 1215553027.

It is an arithmetic number, because the mean of its divisors is an integer number (110615309077).

Almost surely, 2^440030130433 is an apocalyptic number.

It is an amenable number.

440030130433 is a deficient number, since it is larger than the sum of its proper divisors (2431105875).

440030130433 is a wasteful number, since it uses less digits than its factorization.

440030130433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2431105874.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 440030130433 its reverse (334031030044), we get a palindrome (774061160477).

The spelling of 440030130433 in words is "four hundred forty billion, thirty million, one hundred thirty thousand, four hundred thirty-three".