4430631 has 4 divisors (see below), whose sum is σ = 5907512. Its totient is φ = 2953752.

The previous prime is 4430611. The next prime is 4430653. The reversal of 4430631 is 1360344.

4430631 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 4430631 - 2⁵ = 4430599 is a prime.

It is a super-2 number, since 2×4430631² = 39260982116322, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4430598 and 4430607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4430611) 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, 738436 + ... + 738441.

It is an arithmetic number, because the mean of its divisors is an integer number (1476878).

Almost surely, 2^4430631 is an apocalyptic number.

4430631 is a deficient number, since it is larger than the sum of its proper divisors (1476881).

4430631 is a wasteful number, since it uses less digits than its factorization.

4430631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476880.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 4430631 is about 2104.9064112212. The cubic root of 4430631 is about 164.2436270981.

Adding to 4430631 its reverse (1360344), we get a palindrome (5790975).

The spelling of 4430631 in words is "four million, four hundred thirty thousand, six hundred thirty-one".