398124854 has 8 divisors (see below), whose sum is σ = 606100728. Its totient is φ = 196091280.

The previous prime is 398124833. The next prime is 398124863. The reversal of 398124854 is 458421893.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1485407 + ... + 1485674.

It is an arithmetic number, because the mean of its divisors is an integer number (75762591).

Almost surely, 2^398124854 is an apocalyptic number.

398124854 is a deficient number, since it is larger than the sum of its proper divisors (207975874).

398124854 is a wasteful number, since it uses less digits than its factorization.

398124854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2971150.

The product of its digits is 276480, while the sum is 44.

The square root of 398124854 is about 19953.0662806497. The cubic root of 398124854 is about 735.6531464161.

The spelling of 398124854 in words is "three hundred ninety-eight million, one hundred twenty-four thousand, eight hundred fifty-four".