398044057559 has 32 divisors (see below), whose sum is σ = 442482393600. Its totient is φ = 356362444800.

The previous prime is 398044057517. The next prime is 398044057589. The reversal of 398044057559 is 955750440893.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 398044057559 - 2³² = 393749090263 is a prime.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 398044057498 and 398044057507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398044057589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62651327 + ... + 62657679.

It is an arithmetic number, because the mean of its divisors is an integer number (13827574800).

Almost surely, 2^398044057559 is an apocalyptic number.

398044057559 is a deficient number, since it is larger than the sum of its proper divisors (44438336041).

398044057559 is a wasteful number, since it uses less digits than its factorization.

398044057559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8411.

The product of its (nonzero) digits is 27216000, while the sum is 59.

The spelling of 398044057559 in words is "three hundred ninety-eight billion, forty-four million, fifty-seven thousand, five hundred fifty-nine".