1404422491 has 2 divisors, whose sum is σ = 1404422492. Its totient is φ = 1404422490.

The previous prime is 1404422447. The next prime is 1404422497. The reversal of 1404422491 is 1942244041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1404422491 - 2¹⁷ = 1404291419 is a prime.

It is not a weakly prime, because it can be changed into another prime (1404422497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702211245 + 702211246.

It is an arithmetic number, because the mean of its divisors is an integer number (702211246).

Almost surely, 2^1404422491 is an apocalyptic number.

1404422491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1404422491 is an equidigital number, since it uses as much as digits as its factorization.

1404422491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 1404422491 is about 37475.6252916479. The cubic root of 1404422491 is about 1119.8656543257.

The spelling of 1404422491 in words is "one billion, four hundred four million, four hundred twenty-two thousand, four hundred ninety-one".