1404423959 has 2 divisors, whose sum is σ = 1404423960. Its totient is φ = 1404423958.

The previous prime is 1404423947. The next prime is 1404423961. The reversal of 1404423959 is 9593244041.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1404423959 is a prime.

It is a super-2 number, since 2×1404423959² = 3944813313226467362, which contains 22 as substring.

Together with 1404423961, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1404423259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702211979 + 702211980.

It is an arithmetic number, because the mean of its divisors is an integer number (702211980).

Almost surely, 2^1404423959 is an apocalyptic number.

1404423959 is a deficient number, since it is larger than the sum of its proper divisors (1).

1404423959 is an equidigital number, since it uses as much as digits as its factorization.

1404423959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 1404423959 is about 37475.6448777069. The cubic root of 1404423959 is about 1119.8660445127.

The spelling of 1404423959 in words is "one billion, four hundred four million, four hundred twenty-three thousand, nine hundred fifty-nine".