331869042 has 16 divisors (see below), whose sum is σ = 737486880. Its totient is φ = 110622996.

The previous prime is 331868993. The next prime is 331869049. The reversal of 331869042 is 240968133.

It is a super-2 number, since 2×331869042² = 220274122075995528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331868988 and 331869006.

It is not an unprimeable number, because it can be changed into a prime (331869049) 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, 3072808 + ... + 3072915.

It is an arithmetic number, because the mean of its divisors is an integer number (46092930).

Almost surely, 2^331869042 is an apocalyptic number.

331869042 is an abundant number, since it is smaller than the sum of its proper divisors (405617838).

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

331869042 is a wasteful number, since it uses less digits than its factorization.

331869042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6145734 (or 6145728 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 331869042 is about 18217.2731768506. The cubic root of 331869042 is about 692.3445011369.

Subtracting from 331869042 its reverse (240968133), we obtain a palindrome (90900909).

The spelling of 331869042 in words is "three hundred thirty-one million, eight hundred sixty-nine thousand, forty-two".