404671242 has 16 divisors (see below), whose sum is σ = 814704192. Its totient is φ = 133996800.

The previous prime is 404671217. The next prime is 404671243. The reversal of 404671242 is 242176404.

It is not an unprimeable number, because it can be changed into a prime (404671243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222423 + ... + 224234.

It is an arithmetic number, because the mean of its divisors is an integer number (50919012).

Almost surely, 2^404671242 is an apocalyptic number.

404671242 is an abundant number, since it is smaller than the sum of its proper divisors (410032950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404671242 is a wasteful number, since it uses less digits than its factorization.

404671242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446813.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 404671242 is about 20116.4420810441. The cubic root of 404671242 is about 739.6633737972.

The spelling of 404671242 in words is "four hundred four million, six hundred seventy-one thousand, two hundred forty-two".