406941818 has 8 divisors (see below), whose sum is σ = 646319412. Its totient is φ = 191502016.

The previous prime is 406941781. The next prime is 406941863. The reversal of 406941818 is 818149604.

It can be written as a sum of positive squares in 2 ways, for example, as 392554969 + 14386849 = 19813^2 + 3793^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5984405 + ... + 5984472.

Almost surely, 2^406941818 is an apocalyptic number.

406941818 is a deficient number, since it is larger than the sum of its proper divisors (239377594).

406941818 is a wasteful number, since it uses less digits than its factorization.

406941818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11968896.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 406941818 is about 20172.7989629600. The cubic root of 406941818 is about 741.0441906014.

The spelling of 406941818 in words is "four hundred six million, nine hundred forty-one thousand, eight hundred eighteen".