4431660052 has 12 divisors (see below), whose sum is σ = 7965010900. Its totient is φ = 2155942656.

The previous prime is 4431660043. The next prime is 4431660059. The reversal of 4431660052 is 2500661344.

It can be written as a sum of positive squares in 2 ways, for example, as 4172643216 + 259016836 = 64596^2 + 16094^2 .

It is a super-2 number, since 2×4431660052² = 39279221632985285408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4431659996 and 4431660023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4431660059) 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, 14971677 + ... + 14971972.

Almost surely, 2^4431660052 is an apocalyptic number.

It is an amenable number.

4431660052 is a deficient number, since it is larger than the sum of its proper divisors (3533350848).

4431660052 is a wasteful number, since it uses less digits than its factorization.

4431660052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29943690 (or 29943688 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 4431660052 is about 66570.7146724444. The cubic root of 4431660052 is about 1642.5634177686.

The spelling of 4431660052 in words is "four billion, four hundred thirty-one million, six hundred sixty thousand, fifty-two".