443414431 has 2 divisors, whose sum is σ = 443414432. Its totient is φ = 443414430.

The previous prime is 443414407. The next prime is 443414443. The reversal of 443414431 is 134414344.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 443414431 - 2⁵ = 443414399 is a prime.

It is a super-2 number, since 2×443414431² = 393232715238107522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 443414431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (443411431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221707215 + 221707216.

It is an arithmetic number, because the mean of its divisors is an integer number (221707216).

Almost surely, 2^443414431 is an apocalyptic number.

443414431 is a deficient number, since it is larger than the sum of its proper divisors (1).

443414431 is an equidigital number, since it uses as much as digits as its factorization.

443414431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9216, while the sum is 28.

The square root of 443414431 is about 21057.4079838901. The cubic root of 443414431 is about 762.5528368295.

Adding to 443414431 its reverse (134414344), we get a palindrome (577828775).

The spelling of 443414431 in words is "four hundred forty-three million, four hundred fourteen thousand, four hundred thirty-one".