331881198 has 32 divisors (see below), whose sum is σ = 724792320. Its totient is φ = 100474560.

The previous prime is 331881149. The next prime is 331881223. The reversal of 331881198 is 891188133.

331881198 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×331881198² = 220290259171830408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101818 + ... + 105026.

It is an arithmetic number, because the mean of its divisors is an integer number (22649760).

Almost surely, 2^331881198 is an apocalyptic number.

331881198 is an abundant number, since it is smaller than the sum of its proper divisors (392911122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331881198 is a wasteful number, since it uses less digits than its factorization.

331881198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4792.

The product of its digits is 41472, while the sum is 42.

The square root of 331881198 is about 18217.6068131904. The cubic root of 331881198 is about 692.3529543076.

The spelling of 331881198 in words is "three hundred thirty-one million, eight hundred eighty-one thousand, one hundred ninety-eight".