4420020031 has 4 divisors (see below), whose sum is σ = 5051451472. Its totient is φ = 3788588592.

The previous prime is 4420020029. The next prime is 4420020071. The reversal of 4420020031 is 1300200244.

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 4420020031 - 2¹ = 4420020029 is a prime.

It is a super-2 number, since 2×4420020031² = 39073154148882481922, 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 = 4420019987 and 4420020014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4420020001) 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, 315715710 + ... + 315715723.

It is an arithmetic number, because the mean of its divisors is an integer number (1262862868).

Almost surely, 2^4420020031 is an apocalyptic number.

4420020031 is a deficient number, since it is larger than the sum of its proper divisors (631431441).

4420020031 is an equidigital number, since it uses as much as digits as its factorization.

4420020031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631431440.

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

The square root of 4420020031 is about 66483.2312015594. The cubic root of 4420020031 is about 1641.1240597250.

Adding to 4420020031 its reverse (1300200244), we get a palindrome (5720220275).

The spelling of 4420020031 in words is "four billion, four hundred twenty million, twenty thousand, thirty-one".