331300242 has 96 divisors (see below), whose sum is σ = 888031872. Its totient is φ = 86925312.

The previous prime is 331300237. The next prime is 331300243. The reversal of 331300242 is 242003133.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (331300243) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 420573 + ... + 421359.

It is an arithmetic number, because the mean of its divisors is an integer number (9250332).

Almost surely, 2^331300242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331300242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (444015936).

331300242 is an abundant number, since it is smaller than the sum of its proper divisors (556731630).

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

331300242 is a wasteful number, since it uses less digits than its factorization.

331300242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072 (or 1069 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 331300242 is about 18201.6549247589. The cubic root of 331300242 is about 691.9487318205.

Adding to 331300242 its reverse (242003133), we get a palindrome (573303375).

The spelling of 331300242 in words is "three hundred thirty-one million, three hundred thousand, two hundred forty-two".