398112826 has 8 divisors (see below), whose sum is σ = 600505920. Its totient is φ = 197944188.

The previous prime is 398112809. The next prime is 398112863. The reversal of 398112826 is 628211893.

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

It is an unprimeable number.

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, 555666 + ... + 556381.

It is an arithmetic number, because the mean of its divisors is an integer number (75063240).

Almost surely, 2^398112826 is an apocalyptic number.

398112826 is a deficient number, since it is larger than the sum of its proper divisors (202393094).

398112826 is a wasteful number, since it uses less digits than its factorization.

398112826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112228.

The product of its digits is 41472, while the sum is 40.

The square root of 398112826 is about 19952.7648710649. The cubic root of 398112826 is about 735.6457379150.

It can be divided in two parts, 3981 and 12826, that added together give a 5-th power (16807 = 7⁵).

The spelling of 398112826 in words is "three hundred ninety-eight million, one hundred twelve thousand, eight hundred twenty-six".