1398830441 has 2 divisors, whose sum is σ = 1398830442. Its totient is φ = 1398830440.

The previous prime is 1398830393. The next prime is 1398830443. The reversal of 1398830441 is 1440388931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1361314816 + 37515625 = 36896^2 + 6125^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1398830441 is a prime.

Together with 1398830443, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1398830443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 699415220 + 699415221.

It is an arithmetic number, because the mean of its divisors is an integer number (699415221).

Almost surely, 2^1398830441 is an apocalyptic number.

It is an amenable number.

1398830441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1398830441 is an equidigital number, since it uses as much as digits as its factorization.

1398830441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 1398830441 is about 37400.9417127430. The cubic root of 1398830441 is about 1118.3773379796.

The spelling of 1398830441 in words is "one billion, three hundred ninety-eight million, eight hundred thirty thousand, four hundred forty-one".