1408673881 has 2 divisors, whose sum is σ = 1408673882. Its totient is φ = 1408673880.

The previous prime is 1408673857. The next prime is 1408673899. The reversal of 1408673881 is 1883768041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1333418256 + 75255625 = 36516^2 + 8675^2 .

It is a cyclic number.

It is not a de Polignac number, because 1408673881 - 2⁹ = 1408673369 is a prime.

It is a super-2 number, since 2×1408673881² = 3968724206023204322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1408673081) 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, 704336940 + 704336941.

It is an arithmetic number, because the mean of its divisors is an integer number (704336941).

Almost surely, 2^1408673881 is an apocalyptic number.

It is an amenable number.

1408673881 is a deficient number, since it is larger than the sum of its proper divisors (1).

1408673881 is an equidigital number, since it uses as much as digits as its factorization.

1408673881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 258048, while the sum is 46.

The square root of 1408673881 is about 37532.3044989247. The cubic root of 1408673881 is about 1120.9945144500.

The spelling of 1408673881 in words is "one billion, four hundred eight million, six hundred seventy-three thousand, eight hundred eighty-one".