404018422 has 8 divisors (see below), whose sum is σ = 606121272. Its totient is φ = 201978000.

The previous prime is 404018393. The next prime is 404018423. The reversal of 404018422 is 224810404.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404018423) 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, 7297 + ... + 29347.

It is an arithmetic number, because the mean of its divisors is an integer number (75765159).

Almost surely, 2^404018422 is an apocalyptic number.

404018422 is a deficient number, since it is larger than the sum of its proper divisors (202102850).

404018422 is a wasteful number, since it uses less digits than its factorization.

404018422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31214.

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 404018422 is about 20100.2095013958. The cubic root of 404018422 is about 739.2654154201.

Adding to 404018422 its reverse (224810404), we get a palindrome (628828826).

The spelling of 404018422 in words is "four hundred four million, eighteen thousand, four hundred twenty-two".