4331091042 has 12 divisors (see below), whose sum is σ = 9384030630. Its totient is φ = 1443697008.

The previous prime is 4331091041. The next prime is 4331091053. The reversal of 4331091042 is 2401901334.

It can be written as a sum of positive squares in only one way, i.e., 2996577081 + 1334513961 = 54741^2 + 36531^2 .

It is a super-2 number, since 2×4331091042² = 37516699228185291528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4331090997 and 4331091015.

It is not an unprimeable number, because it can be changed into a prime (4331091041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 120308067 + ... + 120308102.

Almost surely, 2^4331091042 is an apocalyptic number.

4331091042 is an abundant number, since it is smaller than the sum of its proper divisors (5052939588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4331091042 is a wasteful number, since it uses less digits than its factorization.

4331091042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240616177 (or 240616174 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 4331091042 is about 65811.0252313395. The cubic root of 4331091042 is about 1630.0431621928.

Adding to 4331091042 its reverse (2401901334), we get a palindrome (6732992376).

The spelling of 4331091042 in words is "four billion, three hundred thirty-one million, ninety-one thousand, forty-two".