30081084 has 36 divisors (see below), whose sum is σ = 77153832. Its totient is φ = 9115040.

The previous prime is 30081071. The next prime is 30081089. The reversal of 30081084 is 48018003.

It is a super-2 number, since 2×30081084² = 1809743229230112, which contains 22 as substring.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30081089) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8907 + ... + 11810.

It is an arithmetic number, because the mean of its divisors is an integer number (2143162).

Almost surely, 2^30081084 is an apocalyptic number.

It is an amenable number.

30081084 is an abundant number, since it is smaller than the sum of its proper divisors (47072748).

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

30081084 is a wasteful number, since it uses less digits than its factorization.

30081084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20746 (or 20733 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 30081084 is about 5484.6225029623. The cubic root of 30081084 is about 311.0029396992.

Adding to 30081084 its reverse (48018003), we get a palindrome (78099087).

The spelling of 30081084 in words is "thirty million, eighty-one thousand, eighty-four".