1334404421 has 4 divisors (see below), whose sum is σ = 1525033632. Its totient is φ = 1143775212.

The previous prime is 1334404381. The next prime is 1334404433. The reversal of 1334404421 is 1244044331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1244044331 = 823 ⋅1511597.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1334404421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1334404441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95314595 + ... + 95314608.

It is an arithmetic number, because the mean of its divisors is an integer number (381258408).

Almost surely, 2^1334404421 is an apocalyptic number.

It is an amenable number.

1334404421 is a deficient number, since it is larger than the sum of its proper divisors (190629211).

1334404421 is an equidigital number, since it uses as much as digits as its factorization.

1334404421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190629210.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 1334404421 is about 36529.5006946440. The cubic root of 1334404421 is about 1100.9370585447.

Adding to 1334404421 its reverse (1244044331), we get a palindrome (2578448752).

The spelling of 1334404421 in words is "one billion, three hundred thirty-four million, four hundred four thousand, four hundred twenty-one".