1404214381 has 2 divisors, whose sum is σ = 1404214382. Its totient is φ = 1404214380.

The previous prime is 1404214379. The next prime is 1404214387. The reversal of 1404214381 is 1834124041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 733922281 + 670292100 = 27091^2 + 25890^2 .

It is a cyclic number.

It is not a de Polignac number, because 1404214381 - 2¹ = 1404214379 is a prime.

It is a super-2 number, since 2×1404214381² = 3943636055614426322, which contains 22 as substring.

Together with 1404214379, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1404214387) 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 as a sum of consecutive naturals, namely, 702107190 + 702107191.

It is an arithmetic number, because the mean of its divisors is an integer number (702107191).

Almost surely, 2^1404214381 is an apocalyptic number.

It is an amenable number.

1404214381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1404214381 is an equidigital number, since it uses as much as digits as its factorization.

1404214381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 1404214381 is about 37472.8485840081. The cubic root of 1404214381 is about 1119.8103369847.

The spelling of 1404214381 in words is "one billion, four hundred four million, two hundred fourteen thousand, three hundred eighty-one".