406641859 has 8 divisors (see below), whose sum is σ = 441074480. Its totient is φ = 372659616.

The previous prime is 406641847. The next prime is 406641883. The reversal of 406641859 is 958146604.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-406641859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406641839) 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, 110712 + ... + 114325.

It is an arithmetic number, because the mean of its divisors is an integer number (55134310).

Almost surely, 2^406641859 is an apocalyptic number.

406641859 is a deficient number, since it is larger than the sum of its proper divisors (34432621).

406641859 is a wasteful number, since it uses less digits than its factorization.

406641859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225189.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 406641859 is about 20165.3628531698. The cubic root of 406641859 is about 740.8620699622.

The spelling of 406641859 in words is "four hundred six million, six hundred forty-one thousand, eight hundred fifty-nine".