1404124221 has 8 divisors (see below), whose sum is σ = 1872349120. Its totient is φ = 935991072.

The previous prime is 1404124213. The next prime is 1404124223. The reversal of 1404124221 is 1224214041.

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

It is not a de Polignac number, because 1404124221 - 2³ = 1404124213 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 (1404124223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30681 + ... + 61233.

It is an arithmetic number, because the mean of its divisors is an integer number (234043640).

Almost surely, 2^1404124221 is an apocalyptic number.

It is an amenable number.

1404124221 is a deficient number, since it is larger than the sum of its proper divisors (468224899).

1404124221 is a wasteful number, since it uses less digits than its factorization.

1404124221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45875.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1404124221 is about 37471.6455603434. The cubic root of 1404124221 is about 1119.7863700220.

Adding to 1404124221 its reverse (1224214041), we get a palindrome (2628338262).

The spelling of 1404124221 in words is "one billion, four hundred four million, one hundred twenty-four thousand, two hundred twenty-one".