404005552450421 has 8 divisors (see below), whose sum is σ = 410040023052000. Its totient is φ = 397971215289648.

The previous prime is 404005552450403. The next prime is 404005552450433. The reversal of 404005552450421 is 124054255500404.

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 404005552450421 - 2¹⁴ = 404005552434037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404005552450441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27251486 + ... + 39378351.

It is an arithmetic number, because the mean of its divisors is an integer number (51255002881500).

Almost surely, 2^{404005552450421} is an apocalyptic number.

It is an amenable number.

404005552450421 is a deficient number, since it is larger than the sum of its proper divisors (6034470601579).

404005552450421 is an equidigital number, since it uses as much as digits as its factorization.

404005552450421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66720403.

The product of its (nonzero) digits is 640000, while the sum is 41.

The spelling of 404005552450421 in words is "four hundred four trillion, five billion, five hundred fifty-two million, four hundred fifty thousand, four hundred twenty-one".