398249059 has 4 divisors (see below), whose sum is σ = 428883616. Its totient is φ = 367614504.

The previous prime is 398249057. The next prime is 398249069. The reversal of 398249059 is 950942893.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 398249059 - 2¹ = 398249057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (398249057) 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 3 ways as a sum of consecutive naturals, for example, 15317259 + ... + 15317284.

It is an arithmetic number, because the mean of its divisors is an integer number (107220904).

Almost surely, 2^398249059 is an apocalyptic number.

398249059 is a deficient number, since it is larger than the sum of its proper divisors (30634557).

398249059 is a wasteful number, since it uses less digits than its factorization.

398249059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30634556.

The product of its (nonzero) digits is 699840, while the sum is 49.

The square root of 398249059 is about 19956.1784668308. The cubic root of 398249059 is about 735.7296402578.

The spelling of 398249059 in words is "three hundred ninety-eight million, two hundred forty-nine thousand, fifty-nine".