406489659 has 8 divisors (see below), whose sum is σ = 556634640. Its totient is φ = 263668896.

The previous prime is 406489651. The next prime is 406489661. The reversal of 406489659 is 956984604.

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

It is not a de Polignac number, because 406489659 - 2³ = 406489651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (406489651) 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, 1830924 + ... + 1831145.

It is an arithmetic number, because the mean of its divisors is an integer number (69579330).

Almost surely, 2^406489659 is an apocalyptic number.

406489659 is a deficient number, since it is larger than the sum of its proper divisors (150144981).

406489659 is a wasteful number, since it uses less digits than its factorization.

406489659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3662109.

The product of its (nonzero) digits is 1866240, while the sum is 51.

The square root of 406489659 is about 20161.5887022824. The cubic root of 406489659 is about 740.7696272098.

The spelling of 406489659 in words is "four hundred six million, four hundred eighty-nine thousand, six hundred fifty-nine".