398119309 has 8 divisors (see below), whose sum is σ = 455136768. Its totient is φ = 341137680.

The previous prime is 398119303. The next prime is 398119313. The reversal of 398119309 is 903911893.

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 398119309 - 2¹⁵ = 398086541 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 (398119303) 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 7 ways as a sum of consecutive naturals, for example, 21999 + ... + 35779.

It is an arithmetic number, because the mean of its divisors is an integer number (56892096).

Almost surely, 2^398119309 is an apocalyptic number.

It is an amenable number.

398119309 is a deficient number, since it is larger than the sum of its proper divisors (57017459).

398119309 is a wasteful number, since it uses less digits than its factorization.

398119309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17915.

The product of its (nonzero) digits is 52488, while the sum is 43.

The square root of 398119309 is about 19952.9273290913. The cubic root of 398119309 is about 735.6497310590.

The spelling of 398119309 in words is "three hundred ninety-eight million, one hundred nineteen thousand, three hundred nine".