398930138998 has 8 divisors (see below), whose sum is σ = 598430623320. Its totient is φ = 199453264560.

The previous prime is 398930138969. The next prime is 398930139001. The reversal of 398930138998 is 899831039893.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5860168 + ... + 5927851.

It is an arithmetic number, because the mean of its divisors is an integer number (74803827915).

Almost surely, 2^398930138998 is an apocalyptic number.

398930138998 is a deficient number, since it is larger than the sum of its proper divisors (199500484322).

398930138998 is a wasteful number, since it uses less digits than its factorization.

398930138998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11804942.

The product of its (nonzero) digits is 90699264, while the sum is 70.

The spelling of 398930138998 in words is "three hundred ninety-eight billion, nine hundred thirty million, one hundred thirty-eight thousand, nine hundred ninety-eight".