404202403004021 has 8 divisors (see below), whose sum is σ = 428102458623360. Its totient is φ = 380316063348928.

The previous prime is 404202403004003. The next prime is 404202403004027. The reversal of 404202403004021 is 120400304202404.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 404202403004021 - 2²⁶ = 404202335895157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404202403004027) 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, 3428930381 + ... + 3429048258.

It is an arithmetic number, because the mean of its divisors is an integer number (53512807327920).

Almost surely, 2^{404202403004021} is an apocalyptic number.

It is an amenable number.

404202403004021 is a deficient number, since it is larger than the sum of its proper divisors (23900055619339).

404202403004021 is a wasteful number, since it uses less digits than its factorization.

404202403004021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6857982123.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 404202403004021 its reverse (120400304202404), we get a palindrome (524602707206425).

The spelling of 404202403004021 in words is "four hundred four trillion, two hundred two billion, four hundred three million, four thousand, twenty-one".