404054421 has 8 divisors (see below), whose sum is σ = 546780384. Its totient is φ = 265349040.

The previous prime is 404054411. The next prime is 404054449. The reversal of 404054421 is 124450404.

It is a happy number.

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

It is not a de Polignac number, because 404054421 - 2²² = 399860117 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 404054391 and 404054400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404054411) 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, 1004910 + ... + 1005311.

It is an arithmetic number, because the mean of its divisors is an integer number (68347548).

Almost surely, 2^404054421 is an apocalyptic number.

It is an amenable number.

404054421 is a deficient number, since it is larger than the sum of its proper divisors (142725963).

404054421 is a wasteful number, since it uses less digits than its factorization.

404054421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010291.

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 404054421 is about 20101.1049696279. The cubic root of 404054421 is about 739.2873715355.

The spelling of 404054421 in words is "four hundred four million, fifty-four thousand, four hundred twenty-one".