1398314933 has 4 divisors (see below), whose sum is σ = 1398970188. Its totient is φ = 1397659680.

The previous prime is 1398314909. The next prime is 1398314941. The reversal of 1398314933 is 3394138931.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 856030564 + 542284369 = 29258^2 + 23287^2 .

It is a cyclic number.

It is not a de Polignac number, because 1398314933 - 2⁸ = 1398314677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398313933) 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 in 3 ways as a sum of consecutive naturals, for example, 324416 + ... + 328697.

It is an arithmetic number, because the mean of its divisors is an integer number (349742547).

Almost surely, 2^1398314933 is an apocalyptic number.

It is an amenable number.

1398314933 is a deficient number, since it is larger than the sum of its proper divisors (655255).

1398314933 is an equidigital number, since it uses as much as digits as its factorization.

1398314933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655254.

The product of its digits is 209952, while the sum is 44.

The square root of 1398314933 is about 37394.0494330315. The cubic root of 1398314933 is about 1118.2399366942.

The spelling of 1398314933 in words is "one billion, three hundred ninety-eight million, three hundred fourteen thousand, nine hundred thirty-three".