440024231 has 2 divisors, whose sum is σ = 440024232. Its totient is φ = 440024230.

The previous prime is 440024161. The next prime is 440024237. The reversal of 440024231 is 132420044.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 440024231 - 2¹⁴ = 440007847 is a prime.

It is a super-2 number, since 2×440024231² = 387242647734282722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440024237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220012115 + 220012116.

It is an arithmetic number, because the mean of its divisors is an integer number (220012116).

Almost surely, 2^440024231 is an apocalyptic number.

440024231 is a deficient number, since it is larger than the sum of its proper divisors (1).

440024231 is an equidigital number, since it uses as much as digits as its factorization.

440024231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 440024231 is about 20976.7545392513. The cubic root of 440024231 is about 760.6044539174.

Adding to 440024231 its reverse (132420044), we get a palindrome (572444275).

The spelling of 440024231 in words is "four hundred forty million, twenty-four thousand, two hundred thirty-one".