331042998 has 32 divisors (see below), whose sum is σ = 777837312. Its totient is φ = 92599200.

The previous prime is 331042997. The next prime is 331043003. The reversal of 331042998 is 899240133.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331042991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192058 + ... + 193773.

It is an arithmetic number, because the mean of its divisors is an integer number (24307416).

Almost surely, 2^331042998 is an apocalyptic number.

331042998 is an abundant number, since it is smaller than the sum of its proper divisors (446794314).

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

331042998 is a wasteful number, since it uses less digits than its factorization.

331042998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385860.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 331042998 is about 18194.5870521977. The cubic root of 331042998 is about 691.7695934568.

The spelling of 331042998 in words is "three hundred thirty-one million, forty-two thousand, nine hundred ninety-eight".