4442520231 has 6 divisors (see below), whose sum is σ = 6416973680. Its totient is φ = 2961680148.

The previous prime is 4442520217. The next prime is 4442520239. The reversal of 4442520231 is 1320252444.

4442520231 is a `hidden beast` number, since 4 + 4 + 425 + 2 + 0 + 231 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-4442520231 is a prime.

It is a super-2 number, since 2×4442520231² = 39471972005688586722, 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 = 4442520195 and 4442520204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4442520239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 246806671 + ... + 246806688.

Almost surely, 2^4442520231 is an apocalyptic number.

4442520231 is a deficient number, since it is larger than the sum of its proper divisors (1974453449).

4442520231 is a wasteful number, since it uses less digits than its factorization.

4442520231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493613365 (or 493613362 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 4442520231 is about 66652.2335034618. The cubic root of 4442520231 is about 1643.9040727145.

Adding to 4442520231 its reverse (1320252444), we get a palindrome (5762772675).

The spelling of 4442520231 in words is "four billion, four hundred forty-two million, five hundred twenty thousand, two hundred thirty-one".