440141431 has 4 divisors (see below), whose sum is σ = 440592912. Its totient is φ = 439689952.

The previous prime is 440141419. The next prime is 440141459. The reversal of 440141431 is 134141044.

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

It is a cyclic number.

It is not a de Polignac number, because 440141431 - 2²³ = 431752823 is a prime.

It is a super-2 number, since 2×440141431² = 387448958565455522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440141411) 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, 224275 + ... + 226228.

It is an arithmetic number, because the mean of its divisors is an integer number (110148228).

Almost surely, 2^440141431 is an apocalyptic number.

440141431 is a deficient number, since it is larger than the sum of its proper divisors (451481).

440141431 is an equidigital number, since it uses as much as digits as its factorization.

440141431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451480.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 440141431 is about 20979.5479217261. The cubic root of 440141431 is about 760.6719766601.

Adding to 440141431 its reverse (134141044), we get a palindrome (574282475).

The spelling of 440141431 in words is "four hundred forty million, one hundred forty-one thousand, four hundred thirty-one".