404429912 has 32 divisors (see below), whose sum is σ = 770515200. Its totient is φ = 198984864.

The previous prime is 404429903. The next prime is 404429917. The reversal of 404429912 is 219924404.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404429917) 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, 136139 + ... + 139077.

It is an arithmetic number, because the mean of its divisors is an integer number (24078600).

Almost surely, 2^404429912 is an apocalyptic number.

It is an amenable number.

404429912 is a deficient number, since it is larger than the sum of its proper divisors (366085288).

404429912 is a wasteful number, since it uses less digits than its factorization.

404429912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3215 (or 3211 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 404429912 is about 20110.4428593704. The cubic root of 404429912 is about 739.5163091850.

The spelling of 404429912 in words is "four hundred four million, four hundred twenty-nine thousand, nine hundred twelve".