4239448131 has 16 divisors (see below), whose sum is σ = 6088480640. Its totient is φ = 2615276160.

The previous prime is 4239448097. The next prime is 4239448181. The reversal of 4239448131 is 1318449324.

4239448131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4239448131 - 2¹¹ = 4239446083 is a prime.

It is a super-2 number, since 2×4239448131² = 35945840910878786322, 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 4239448131.

It is not an unprimeable number, because it can be changed into a prime (4239448181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 862390 + ... + 867291.

It is an arithmetic number, because the mean of its divisors is an integer number (380530040).

Almost surely, 2^4239448131 is an apocalyptic number.

4239448131 is a deficient number, since it is larger than the sum of its proper divisors (1849032509).

4239448131 is a wasteful number, since it uses less digits than its factorization.

4239448131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729746.

The product of its digits is 82944, while the sum is 39.

The square root of 4239448131 is about 65111.0446161018. The cubic root of 4239448131 is about 1618.4642422471.

It can be divided in two parts, 42394 and 48131, that added together give a triangular number (90525 = T₄₂₅).

The spelling of 4239448131 in words is "four billion, two hundred thirty-nine million, four hundred forty-eight thousand, one hundred thirty-one".