329678028 has 18 divisors (see below), whose sum is σ = 833352884. Its totient is φ = 109892664.

The previous prime is 329678009. The next prime is 329678047. The reversal of 329678028 is 820876923.

It is an interprime number because it is at equal distance from previous prime (329678009) and next prime (329678047).

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4578826 + ... + 4578897.

Almost surely, 2^329678028 is an apocalyptic number.

It is an amenable number.

329678028 is an abundant number, since it is smaller than the sum of its proper divisors (503674856).

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

329678028 is a wasteful number, since it uses less digits than its factorization.

329678028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9157733 (or 9157728 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 329678028 is about 18157.0379742953. The cubic root of 329678028 is about 690.8175061534.

The spelling of 329678028 in words is "three hundred twenty-nine million, six hundred seventy-eight thousand, twenty-eight".