328537944 has 144 divisors (see below), whose sum is σ = 1073709000. Its totient is φ = 93840768.

The previous prime is 328537927. The next prime is 328537973. The reversal of 328537944 is 449735823.

328537944 is a `hidden beast` number, since 3 + 28 + 537 + 94 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 328537944.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 93532 + ... + 96980.

Almost surely, 2^328537944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 328537944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (536854500).

328537944 is an abundant number, since it is smaller than the sum of its proper divisors (745171056).

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

328537944 is a wasteful number, since it uses less digits than its factorization.

328537944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3484 (or 3461 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 328537944 is about 18125.6156860946. The cubic root of 328537944 is about 690.0202640552.

The spelling of 328537944 in words is "three hundred twenty-eight million, five hundred thirty-seven thousand, nine hundred forty-four".