398119459 has 4 divisors (see below), whose sum is σ = 398164960. Its totient is φ = 398073960.

The previous prime is 398119457. The next prime is 398119493. The reversal of 398119459 is 954911893.

398119459 = T₁₆₂₉₀ + T₁₆₂₉₁ + T₁₆₂₉₂.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 954911893 = 13 ⋅73454761.

It is a cyclic number.

It is not a de Polignac number, because 398119459 - 2¹ = 398119457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398119457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5019 + ... + 28660.

It is an arithmetic number, because the mean of its divisors is an integer number (99541240).

Almost surely, 2^398119459 is an apocalyptic number.

398119459 is the 16292-nd centered triangular number.

398119459 is a deficient number, since it is larger than the sum of its proper divisors (45501).

398119459 is a wasteful number, since it uses less digits than its factorization.

398119459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45500.

The product of its digits is 349920, while the sum is 49.

The square root of 398119459 is about 19952.9310879379. The cubic root of 398119459 is about 735.6498234496.

The spelling of 398119459 in words is "three hundred ninety-eight million, one hundred nineteen thousand, four hundred fifty-nine".