331749616 has 40 divisors (see below), whose sum is σ = 702298800. Its totient is φ = 150558720.

The previous prime is 331749599. The next prime is 331749617. The reversal of 331749616 is 616947133.

It is a super-2 number, since 2×331749616² = 220115615432294912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331749617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162490 + ... + 164518.

It is an arithmetic number, because the mean of its divisors is an integer number (17557470).

Almost surely, 2^331749616 is an apocalyptic number.

It is an amenable number.

331749616 is an abundant number, since it is smaller than the sum of its proper divisors (370549184).

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

331749616 is a wasteful number, since it uses less digits than its factorization.

331749616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2977 (or 2971 counting only the distinct ones).

The product of its digits is 81648, while the sum is 40.

The square root of 331749616 is about 18213.9950587453. The cubic root of 331749616 is about 692.2614424159.

It can be divided in two parts, 331 and 749616, that added together give a palindrome (749947).

The spelling of 331749616 in words is "three hundred thirty-one million, seven hundred forty-nine thousand, six hundred sixteen".