404120212 has 12 divisors (see below), whose sum is σ = 737958816. Its totient is φ = 193274840.

The previous prime is 404120207. The next prime is 404120219. The reversal of 404120212 is 212021404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404120219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2196214 + ... + 2196397.

It is an arithmetic number, because the mean of its divisors is an integer number (61496568).

Almost surely, 2^404120212 is an apocalyptic number.

It is an amenable number.

404120212 is a deficient number, since it is larger than the sum of its proper divisors (333838604).

404120212 is a wasteful number, since it uses less digits than its factorization.

404120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4392638 (or 4392636 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 404120212 is about 20102.7414050920. The cubic root of 404120212 is about 739.3274946916.

Adding to 404120212 its reverse (212021404), we get a palindrome (616141616).

The spelling of 404120212 in words is "four hundred four million, one hundred twenty thousand, two hundred twelve".