6445532 has 12 divisors (see below), whose sum is σ = 11348400. Its totient is φ = 3203136.

The previous prime is 6445529. The next prime is 6445547. The reversal of 6445532 is 2355446.

It is a super-3 number, since 3×6445532³ (a number of 21 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6445495 and 6445504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4157 + ... + 5492.

It is an arithmetic number, because the mean of its divisors is an integer number (945700).

Almost surely, 2^6445532 is an apocalyptic number.

It is an amenable number.

6445532 is a deficient number, since it is larger than the sum of its proper divisors (4902868).

6445532 is a wasteful number, since it uses less digits than its factorization.

6445532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9820 (or 9818 counting only the distinct ones).

The product of its digits is 14400, while the sum is 29.

The square root of 6445532 is about 2538.8052308123. The cubic root of 6445532 is about 186.1028066953.

The spelling of 6445532 in words is "six million, four hundred forty-five thousand, five hundred thirty-two".