404342018 has 8 divisors (see below), whose sum is σ = 615055680. Its totient is φ = 199323460.

The previous prime is 404342017. The next prime is 404342023. The reversal of 404342018 is 810243404.

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

It is not an unprimeable number, because it can be changed into a prime (404342017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1423598 + ... + 1423881.

It is an arithmetic number, because the mean of its divisors is an integer number (76881960).

Almost surely, 2^404342018 is an apocalyptic number.

404342018 is a deficient number, since it is larger than the sum of its proper divisors (210713662).

404342018 is a wasteful number, since it uses less digits than its factorization.

404342018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2847552.

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 404342018 is about 20108.2574580693. The cubic root of 404342018 is about 739.4627327359.

The spelling of 404342018 in words is "four hundred four million, three hundred forty-two thousand, eighteen".