1404404421 has 8 divisors (see below), whose sum is σ = 2140044864. Its totient is φ = 802516800.

The previous prime is 1404404401. The next prime is 1404404453. The reversal of 1404404421 is 1244044041.

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 1404404421 - 2⁵ = 1404404389 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1404404391 and 1404404400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1404404401) 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, 33438180 + ... + 33438221.

It is an arithmetic number, because the mean of its divisors is an integer number (267505608).

Almost surely, 2^1404404421 is an apocalyptic number.

It is an amenable number.

1404404421 is a deficient number, since it is larger than the sum of its proper divisors (735640443).

1404404421 is an equidigital number, since it uses as much as digits as its factorization.

1404404421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66876411.

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 1404404421 is about 37475.3842008324. The cubic root of 1404404421 is about 1119.8608513885.

Adding to 1404404421 its reverse (1244044041), we get a palindrome (2648448462).

The spelling of 1404404421 in words is "one billion, four hundred four million, four hundred four thousand, four hundred twenty-one".