69328028 has 96 divisors (see below), whose sum is σ = 160247808. Its totient is φ = 25459200.

The previous prime is 69328019. The next prime is 69328031. The reversal of 69328028 is 82082396.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 69327982 and 69328000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 505976 + ... + 506112.

It is an arithmetic number, because the mean of its divisors is an integer number (1669248).

Almost surely, 2^69328028 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 69328028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80123904).

69328028 is an abundant number, since it is smaller than the sum of its proper divisors (90919780).

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

69328028 is a wasteful number, since it uses less digits than its factorization.

69328028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 69328028 is about 8326.3454168080. The cubic root of 69328028 is about 410.8055311410.

The spelling of 69328028 in words is "sixty-nine million, three hundred twenty-eight thousand, twenty-eight".