409118859 has 12 divisors (see below), whose sum is σ = 593056152. Its totient is φ = 271773600.

The previous prime is 409118837. The next prime is 409118861. The reversal of 409118859 is 958811904.

It is not a de Polignac number, because 409118859 - 2²⁰ = 408070283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (409118159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78357 + ... + 83414.

It is an arithmetic number, because the mean of its divisors is an integer number (49421346).

Almost surely, 2^409118859 is an apocalyptic number.

409118859 is a deficient number, since it is larger than the sum of its proper divisors (183937293).

409118859 is a wasteful number, since it uses less digits than its factorization.

409118859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162058 (or 162055 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The square root of 409118859 is about 20226.6868023411. The cubic root of 409118859 is about 742.3633105519.

It can be divided in two parts, 40911 and 8859, that added together give a triangular number (49770 = T₃₁₅).

The spelling of 409118859 in words is "four hundred nine million, one hundred eighteen thousand, eight hundred fifty-nine".