6441730 has 8 divisors (see below), whose sum is σ = 11595132. Its totient is φ = 2576688.

The previous prime is 6441709. The next prime is 6441733. The reversal of 6441730 is 371446.

It can be written as a sum of positive squares in 2 ways, for example, as 5202961 + 1238769 = 2281^2 + 1113^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 6441695 and 6441704.

It is not an unprimeable number, because it can be changed into a prime (6441733) 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, 322077 + ... + 322096.

Almost surely, 2^6441730 is an apocalyptic number.

6441730 is a deficient number, since it is larger than the sum of its proper divisors (5153402).

6441730 is a wasteful number, since it uses less digits than its factorization.

6441730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644180.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 6441730 is about 2538.0563429522. The cubic root of 6441730 is about 186.0662075938.

The spelling of 6441730 in words is "six million, four hundred forty-one thousand, seven hundred thirty".