30726080 has 224 divisors, whose sum is σ = 96560640. Its totient is φ = 9031680.

The previous prime is 30726067. The next prime is 30726083. The reversal of 30726080 is 8062703.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30726083) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 714539 + ... + 714581.

Almost surely, 2^30726080 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 30726080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48280320).

30726080 is an abundant number, since it is smaller than the sum of its proper divisors (65834560).

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

30726080 is a wasteful number, since it uses less digits than its factorization.

30726080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 30726080 is about 5543.1110398404. Note that the first 3 decimals coincide. The cubic root of 30726080 is about 313.2100717320.

Adding to 30726080 its reverse (8062703), we get a palindrome (38788783).

The spelling of 30726080 in words is "thirty million, seven hundred twenty-six thousand, eighty".