6430345 has 8 divisors (see below), whose sum is σ = 7742664. Its totient is φ = 5126784.

The previous prime is 6430343. The next prime is 6430381. The reversal of 6430345 is 5430346.

It can be written as a sum of positive squares in 4 ways, for example, as 19321 + 6411024 = 139^2 + 2532^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 6430345 - 2¹ = 6430343 is a prime.

It is a d-powerful number, because it can be written as 6⁶ + 4³ + 3¹⁰ + 0 + 3¹¹ + 4¹¹ + 5⁹ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6430343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444 + ... + 3613.

It is an arithmetic number, because the mean of its divisors is an integer number (967833).

Almost surely, 2^6430345 is an apocalyptic number.

It is an amenable number.

6430345 is a deficient number, since it is larger than the sum of its proper divisors (1312319).

6430345 is a wasteful number, since it uses less digits than its factorization.

6430345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4379.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 6430345 is about 2535.8124930681. The cubic root of 6430345 is about 185.9565262408.

Subtracting from 6430345 its reverse (5430346), we obtain a palindrome (999999).

The spelling of 6430345 in words is "six million, four hundred thirty thousand, three hundred forty-five".