328241440 has 48 divisors (see below), whose sum is σ = 821093112. Its totient is φ = 123572224.

The previous prime is 328241371. The next prime is 328241447. The reversal of 328241440 is 44142823.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 328189456 + 51984 = 18116^2 + 228^2 .

It is a junction number, because it is equal to n+sod(n) for n = 328241399 and 328241408.

It is not an unprimeable number, because it can be changed into a prime (328241447) 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, 57619 + ... + 63058.

Almost surely, 2^328241440 is an apocalyptic number.

It is an amenable number.

328241440 is an abundant number, since it is smaller than the sum of its proper divisors (492851672).

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

328241440 is a wasteful number, since it uses less digits than its factorization.

328241440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120709 (or 120701 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 328241440 is about 18117.4346969984. The cubic root of 328241440 is about 689.8126215273.

The spelling of 328241440 in words is "three hundred twenty-eight million, two hundred forty-one thousand, four hundred forty".