4400220031 has 4 divisors (see below), whose sum is σ = 4400380600. Its totient is φ = 4400059464.

The previous prime is 4400220023. The next prime is 4400220047. The reversal of 4400220031 is 1300220044.

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 4400220031 - 2³ = 4400220023 is a prime.

It is a super-2 number, since 2×4400220031² = 38723872642427281922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4400219987 and 4400220014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4400220061) 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, 27696 + ... + 97813.

It is an arithmetic number, because the mean of its divisors is an integer number (1100095150).

Almost surely, 2^4400220031 is an apocalyptic number.

4400220031 is a deficient number, since it is larger than the sum of its proper divisors (160569).

4400220031 is a wasteful number, since it uses less digits than its factorization.

4400220031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160568.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 4400220031 is about 66334.1543324402. The cubic root of 4400220031 is about 1638.6698553033.

Adding to 4400220031 its reverse (1300220044), we get a palindrome (5700440075).

The spelling of 4400220031 in words is "four billion, four hundred million, two hundred twenty thousand, thirty-one".