1398130249 has 8 divisors (see below), whose sum is σ = 1411058880. Its totient is φ = 1385242896.

The previous prime is 1398130231. The next prime is 1398130267. The reversal of 1398130249 is 9420318931.

It is an interprime number because it is at equal distance from previous prime (1398130231) and next prime (1398130267).

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 1398130249 - 2⁹ = 1398129737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1398130649) 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, 59919 + ... + 79915.

It is an arithmetic number, because the mean of its divisors is an integer number (176382360).

Almost surely, 2^1398130249 is an apocalyptic number.

It is an amenable number.

1398130249 is a deficient number, since it is larger than the sum of its proper divisors (12928631).

1398130249 is a wasteful number, since it uses less digits than its factorization.

1398130249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20639.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 1398130249 is about 37391.5799211534. The cubic root of 1398130249 is about 1118.1907035988.

The spelling of 1398130249 in words is "one billion, three hundred ninety-eight million, one hundred thirty thousand, two hundred forty-nine".