1398299243 has 8 divisors (see below), whose sum is σ = 1605702720. Its totient is φ = 1204276680.

The previous prime is 1398299213. The next prime is 1398299251. The reversal of 1398299243 is 3429928931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1398299243 - 2⁸ = 1398298987 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1398299191 and 1398299200.

It is not an unprimeable number, because it can be changed into a prime (1398299213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3345005 + ... + 3345422.

It is an arithmetic number, because the mean of its divisors is an integer number (200712840).

Almost surely, 2^1398299243 is an apocalyptic number.

1398299243 is a deficient number, since it is larger than the sum of its proper divisors (207403477).

1398299243 is a wasteful number, since it uses less digits than its factorization.

1398299243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6690457.

The product of its digits is 839808, while the sum is 50.

The square root of 1398299243 is about 37393.8396397054. The cubic root of 1398299243 is about 1118.2357542196.

The spelling of 1398299243 in words is "one billion, three hundred ninety-eight million, two hundred ninety-nine thousand, two hundred forty-three".