30000080 has 80 divisors (see below), whose sum is σ = 77298624. Its totient is φ = 10736640.

The previous prime is 30000079. The next prime is 30000083. The reversal of 30000080 is 8000003.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (11).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30000083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64007 + ... + 64473.

Almost surely, 2^30000080 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 30000080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38649312).

30000080 is an abundant number, since it is smaller than the sum of its proper divisors (47298544).

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

30000080 is a wasteful number, since it uses less digits than its factorization.

30000080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564 (or 558 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 30000080 is about 5477.2328780142. The cubic root of 30000080 is about 310.7235267936.

30000080 divided by its sum of digits (11) gives a triangular number (2727280 = T₂₃₃₅).

Adding to 30000080 its reverse (8000003), we get a palindrome (38000083).

The spelling of 30000080 in words is "thirty million, eighty", and thus it is an aban number and an uban number.