28608030 has 144 divisors (see below), whose sum is σ = 85149792. Its totient is φ = 6652800.

The previous prime is 28608023. The next prime is 28608049. The reversal of 28608030 is 3080682.

28608030 is a `hidden beast` number, since 28 + 608 + 0 + 30 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 28607985 and 28608003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 402895 + ... + 402965.

It is an arithmetic number, because the mean of its divisors is an integer number (591318).

Almost surely, 2^28608030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28608030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42574896).

28608030 is an abundant number, since it is smaller than the sum of its proper divisors (56541762).

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

28608030 is a wasteful number, since it uses less digits than its factorization.

28608030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 28608030 is about 5348.6474925910. The cubic root of 28608030 is about 305.8411965960.

The spelling of 28608030 in words is "twenty-eight million, six hundred eight thousand, thirty".