331343244 has 48 divisors (see below), whose sum is σ = 896394240. Its totient is φ = 105644880.

The previous prime is 331343239. The next prime is 331343249. The reversal of 331343244 is 442343133.

331343244 is a `hidden beast` number, since 331 + 3 + 4 + 324 + 4 = 666.

331343244 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (331343239) and next prime (331343249).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (331343249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64212 + ... + 69179.

It is an arithmetic number, because the mean of its divisors is an integer number (18674880).

Almost surely, 2^331343244 is an apocalyptic number.

It is an amenable number.

331343244 is an abundant number, since it is smaller than the sum of its proper divisors (565050996).

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

331343244 is a wasteful number, since it uses less digits than its factorization.

331343244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133427 (or 133419 counting only the distinct ones).

The product of its digits is 10368, while the sum is 27.

The square root of 331343244 is about 18202.8361526439. The cubic root of 331343244 is about 691.9786683034.

Adding to 331343244 its reverse (442343133), we get a palindrome (773686377).

The spelling of 331343244 in words is "three hundred thirty-one million, three hundred forty-three thousand, two hundred forty-four".