331041138 has 16 divisors (see below), whose sum is σ = 662465856. Its totient is φ = 110283120.

The previous prime is 331041131. The next prime is 331041167. The reversal of 331041138 is 831140133.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (331041131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4081 + ... + 26052.

It is an arithmetic number, because the mean of its divisors is an integer number (41404116).

Almost surely, 2^331041138 is an apocalyptic number.

331041138 is an abundant number, since it is smaller than the sum of its proper divisors (331424718).

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

331041138 is a wasteful number, since it uses less digits than its factorization.

331041138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31969.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 331041138 is about 18194.5359380227. The cubic root of 331041138 is about 691.7682978609.

The spelling of 331041138 in words is "three hundred thirty-one million, forty-one thousand, one hundred thirty-eight".