406108918 has 16 divisors (see below), whose sum is σ = 620318160. Its totient is φ = 199345536.

The previous prime is 406108891. The next prime is 406108919. The reversal of 406108918 is 819801604.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406108919) 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, 108730 + ... + 112402.

It is an arithmetic number, because the mean of its divisors is an integer number (38769885).

Almost surely, 2^406108918 is an apocalyptic number.

406108918 is a deficient number, since it is larger than the sum of its proper divisors (214209242).

406108918 is a wasteful number, since it uses less digits than its factorization.

406108918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4671.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 406108918 is about 20152.1442531558. The cubic root of 406108918 is about 740.5382728430.

The spelling of 406108918 in words is "four hundred six million, one hundred eight thousand, nine hundred eighteen".