981842398 has 8 divisors (see below), whose sum is σ = 1476984600. Its totient is φ = 489514200.

The previous prime is 981842363. The next prime is 981842413. The reversal of 981842398 is 893248189.

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, 702628 + ... + 704023.

It is an arithmetic number, because the mean of its divisors is an integer number (184623075).

Almost surely, 2^981842398 is an apocalyptic number.

981842398 is a deficient number, since it is larger than the sum of its proper divisors (495142202).

981842398 is a wasteful number, since it uses less digits than its factorization.

981842398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407002.

The product of its digits is 995328, while the sum is 52.

The square root of 981842398 is about 31334.3644901249. The cubic root of 981842398 is about 993.9104587593.

The spelling of 981842398 in words is "nine hundred eighty-one million, eight hundred forty-two thousand, three hundred ninety-eight".