30304080 has 60 divisors (see below), whose sum is σ = 101773620. Its totient is φ = 8080896.

The previous prime is 30304003. The next prime is 30304091. The reversal of 30304080 is 8040303.

It can be written as a sum of positive squares in 2 ways, for example, as 23270976 + 7033104 = 4824^2 + 2652^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20325 + ... + 21764.

It is an arithmetic number, because the mean of its divisors is an integer number (1696227).

Almost surely, 2^30304080 is an apocalyptic number.

30304080 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30304080 is an abundant number, since it is smaller than the sum of its proper divisors (71469540).

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

30304080 is a wasteful number, since it uses less digits than its factorization.

30304080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42108 (or 42099 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 30304080 is about 5504.9141682682. The cubic root of 30304080 is about 311.7695536979.

Adding to 30304080 its reverse (8040303), we get a palindrome (38344383).

The spelling of 30304080 in words is "thirty million, three hundred four thousand, eighty".