331100042 has 96 divisors (see below), whose sum is σ = 676341120. Its totient is φ = 118039680.

The previous prime is 331100027. The next prime is 331100089. The reversal of 331100042 is 240001133.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1829192 + ... + 1829372.

It is an arithmetic number, because the mean of its divisors is an integer number (7045220).

Almost surely, 2^331100042 is an apocalyptic number.

331100042 is an abundant number, since it is smaller than the sum of its proper divisors (345241078).

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

331100042 is a wasteful number, since it uses less digits than its factorization.

331100042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 331100042 is about 18196.1545937596. The cubic root of 331100042 is about 691.8093254941.

331100042 divided by its sum of digits (14) gives a triangular number (23650003 = T₆₈₇₇).

Adding to 331100042 its reverse (240001133), we get a palindrome (571101175).

The spelling of 331100042 in words is "three hundred thirty-one million, one hundred thousand, forty-two".