331783648 has 48 divisors (see below), whose sum is σ = 778982400. Its totient is φ = 136008576.

The previous prime is 331783631. The next prime is 331783649. The reversal of 331783648 is 846387133.

331783648 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×331783648² = 220160778160375808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331783649) 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, 27048 + ... + 37351.

It is an arithmetic number, because the mean of its divisors is an integer number (16228800).

Almost surely, 2^331783648 is an apocalyptic number.

It is an amenable number.

331783648 is an abundant number, since it is smaller than the sum of its proper divisors (447198752).

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

331783648 is a wasteful number, since it uses less digits than its factorization.

331783648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64439 (or 64431 counting only the distinct ones).

The product of its digits is 290304, while the sum is 43.

The square root of 331783648 is about 18214.9292614602. The cubic root of 331783648 is about 692.2851131148.

The spelling of 331783648 in words is "three hundred thirty-one million, seven hundred eighty-three thousand, six hundred forty-eight".