404100402 has 8 divisors (see below), whose sum is σ = 808200816. Its totient is φ = 134700132.

The previous prime is 404100401. The next prime is 404100427. The reversal of 404100402 is 204001404.

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

404100402 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (404100401) 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, 33675028 + ... + 33675039.

It is an arithmetic number, because the mean of its divisors is an integer number (101025102).

Almost surely, 2^404100402 is an apocalyptic number.

404100402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

404100402 is a wasteful number, since it uses less digits than its factorization.

404100402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67350072.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 404100402 is about 20102.2486801850. The cubic root of 404100402 is about 739.3154138664.

Adding to 404100402 its reverse (204001404), we get a palindrome (608101806).

The spelling of 404100402 in words is "four hundred four million, one hundred thousand, four hundred two".