30001272 has 64 divisors (see below), whose sum is σ = 87732480. Its totient is φ = 8370432.

The previous prime is 30001267. The next prime is 30001297. The reversal of 30001272 is 27210003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5148 + ... + 9300.

It is an arithmetic number, because the mean of its divisors is an integer number (1370820).

Almost surely, 2^30001272 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 30001272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43866240).

30001272 is an abundant number, since it is smaller than the sum of its proper divisors (57731208).

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

30001272 is a wasteful number, since it uses less digits than its factorization.

30001272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4212 (or 4208 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 30001272 is about 5477.3416910030. The cubic root of 30001272 is about 310.7276420886.

Adding to 30001272 its reverse (27210003), we get a palindrome (57211275).

The spelling of 30001272 in words is "thirty million, one thousand, two hundred seventy-two".