398254063 has 8 divisors (see below), whose sum is σ = 402390560. Its totient is φ = 394126560.

The previous prime is 398254049. The next prime is 398254067. The reversal of 398254063 is 360452893.

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

It is a de Polignac number, because none of the positive numbers 2^k-398254063 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 (398254067) 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 7 ways as a sum of consecutive naturals, for example, 120118 + ... + 123388.

It is an arithmetic number, because the mean of its divisors is an integer number (50298820).

Almost surely, 2^398254063 is an apocalyptic number.

398254063 is a deficient number, since it is larger than the sum of its proper divisors (4136497).

398254063 is a wasteful number, since it uses less digits than its factorization.

398254063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4497.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 398254063 is about 19956.3038411425. The cubic root of 398254063 is about 735.7327217263.

The spelling of 398254063 in words is "three hundred ninety-eight million, two hundred fifty-four thousand, sixty-three".