4428631 has 8 divisors (see below), whose sum is σ = 4520880. Its totient is φ = 4337472.

The previous prime is 4428607. The next prime is 4428643. The reversal of 4428631 is 1368244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4428631 is a prime.

It is a super-2 number, since 2×4428631² = 39225545068322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4428631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4428601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18891 + ... + 19123.

It is an arithmetic number, because the mean of its divisors is an integer number (565110).

Almost surely, 2^4428631 is an apocalyptic number.

4428631 is a deficient number, since it is larger than the sum of its proper divisors (92249).

4428631 is a wasteful number, since it uses less digits than its factorization.

4428631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545.

The product of its digits is 4608, while the sum is 28.

The square root of 4428631 is about 2104.4312770913. The cubic root of 4428631 is about 164.2189100248.

The spelling of 4428631 in words is "four million, four hundred twenty-eight thousand, six hundred thirty-one".