1398331239 has 8 divisors (see below), whose sum is σ = 1962570240. Its totient is φ = 883156536.

The previous prime is 1398331237. The next prime is 1398331241. The reversal of 1398331239 is 9321338931.

It is an interprime number because it is at equal distance from previous prime (1398331237) and next prime (1398331241).

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

It is not a de Polignac number, because 1398331239 - 2¹ = 1398331237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1398331239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398331237) 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, 12266007 + ... + 12266120.

It is an arithmetic number, because the mean of its divisors is an integer number (245321280).

Almost surely, 2^1398331239 is an apocalyptic number.

1398331239 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1398331239 is a deficient number, since it is larger than the sum of its proper divisors (564239001).

1398331239 is a wasteful number, since it uses less digits than its factorization.

1398331239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24532149.

The product of its digits is 104976, while the sum is 42.

The square root of 1398331239 is about 37394.2674617380. The cubic root of 1398331239 is about 1118.2442833425.

The spelling of 1398331239 in words is "one billion, three hundred ninety-eight million, three hundred thirty-one thousand, two hundred thirty-nine".