1404454321 has 2 divisors, whose sum is σ = 1404454322. Its totient is φ = 1404454320.

The previous prime is 1404454319. The next prime is 1404454379. The reversal of 1404454321 is 1234544041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 705433600 + 699020721 = 26560^2 + 26439^2 .

It is a cyclic number.

It is not a de Polignac number, because 1404454321 - 2¹ = 1404454319 is a prime.

Together with 1404454319, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1404454321.

It is not a weakly prime, because it can be changed into another prime (1404454391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702227160 + 702227161.

It is an arithmetic number, because the mean of its divisors is an integer number (702227161).

Almost surely, 2^1404454321 is an apocalyptic number.

It is an amenable number.

1404454321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1404454321 is an equidigital number, since it uses as much as digits as its factorization.

1404454321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 1404454321 is about 37476.0499652778. The cubic root of 1404454321 is about 1119.8741145184.

Adding to 1404454321 its reverse (1234544041), we get a palindrome (2638998362).

The spelling of 1404454321 in words is "one billion, four hundred four million, four hundred fifty-four thousand, three hundred twenty-one".