331740042 has 8 divisors (see below), whose sum is σ = 663480096. Its totient is φ = 110580012.

The previous prime is 331740037. The next prime is 331740119. The reversal of 331740042 is 240047133.

It is a sphenic number, since it is the product of 3 distinct primes.

331740042 is an admirable number.

It is a super-2 number, since 2×331740042² = 220102910932323528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331739994 and 331740021.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27644998 + ... + 27645009.

It is an arithmetic number, because the mean of its divisors is an integer number (82935012).

Almost surely, 2^331740042 is an apocalyptic number.

331740042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

331740042 is a wasteful number, since it uses less digits than its factorization.

331740042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55290012.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 331740042 is about 18213.7322369689. The cubic root of 331740042 is about 692.2547830012.

Adding to 331740042 its reverse (240047133), we get a palindrome (571787175).

The spelling of 331740042 in words is "three hundred thirty-one million, seven hundred forty thousand, forty-two".