30034720 has 48 divisors (see below), whose sum is σ = 73415160. Its totient is φ = 11597824.

The previous prime is 30034709. The next prime is 30034723. The reversal of 30034720 is 2743003.

It can be written as a sum of positive squares in 4 ways, for example, as 19820304 + 10214416 = 4452^2 + 3196^2 .

It is not an unprimeable number, because it can be changed into a prime (30034723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1404 + ... + 7876.

Almost surely, 2^30034720 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 30034720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36707580).

30034720 is an abundant number, since it is smaller than the sum of its proper divisors (43380440).

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

30034720 is a wasteful number, since it uses less digits than its factorization.

30034720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6517 (or 6509 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 30034720 is about 5480.3941464095. The cubic root of 30034720 is about 310.8430745070.

Adding to 30034720 its reverse (2743003), we get a palindrome (32777723).

The spelling of 30034720 in words is "thirty million, thirty-four thousand, seven hundred twenty".