406581343 has 8 divisors (see below), whose sum is σ = 465026720. Its totient is φ = 348226560.

The previous prime is 406581269. The next prime is 406581377. The reversal of 406581343 is 343185604.

It is a happy number.

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 406581343 - 2⁹ = 406580831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 406581299 and 406581308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406582343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12738 + ... + 31231.

It is an arithmetic number, because the mean of its divisors is an integer number (58128340).

Almost surely, 2^406581343 is an apocalyptic number.

406581343 is a deficient number, since it is larger than the sum of its proper divisors (58445377).

406581343 is a wasteful number, since it uses less digits than its factorization.

406581343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45297.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 406581343 is about 20163.8623036362. The cubic root of 406581343 is about 740.8253167093.

The spelling of 406581343 in words is "four hundred six million, five hundred eighty-one thousand, three hundred forty-three".