4421431 has 16 divisors (see below), whose sum is σ = 5253120. Its totient is φ = 3643200.

The previous prime is 4421423. The next prime is 4421447. The reversal of 4421431 is 1341244.

It is a cyclic number.

It is not a de Polignac number, because 4421431 - 2³ = 4421423 is a prime.

It is a super-2 number, since 2×4421431² = 39098104175522, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 4421399 and 4421408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4421491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29206 + ... + 29356.

It is an arithmetic number, because the mean of its divisors is an integer number (328320).

Almost surely, 2^4421431 is an apocalyptic number.

4421431 is a deficient number, since it is larger than the sum of its proper divisors (831689).

4421431 is a wasteful number, since it uses less digits than its factorization.

4421431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294.

The product of its digits is 384, while the sum is 19.

The square root of 4421431 is about 2102.7199052656. The cubic root of 4421431 is about 164.1298668951.

Adding to 4421431 its reverse (1341244), we get a palindrome (5762675).

The spelling of 4421431 in words is "four million, four hundred twenty-one thousand, four hundred thirty-one".