30060720 has 100 divisors (see below), whose sum is σ = 104427840. Its totient is φ = 8014464.

The previous prime is 30060713. The next prime is 30060721. The reversal of 30060720 is 2706003.

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

It is a junction number, because it is equal to n+sod(n) for n = 30060693 and 30060702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30060721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4161 + ... + 8799.

Almost surely, 2^30060720 is an apocalyptic number.

30060720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30060720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52213920).

30060720 is an abundant number, since it is smaller than the sum of its proper divisors (74367120).

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

30060720 is a wasteful number, since it uses less digits than its factorization.

30060720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4664 (or 4649 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 30060720 is about 5482.7657254346. The cubic root of 30060720 is about 310.9327439405.

Adding to 30060720 its reverse (2706003), we get a palindrome (32766723).

The spelling of 30060720 in words is "thirty million, sixty thousand, seven hundred twenty".