30064881 has 24 divisors (see below), whose sum is σ = 50873184. Its totient is φ = 15617280.

The previous prime is 30064877. The next prime is 30064883. The reversal of 30064881 is 18846003.

It is a happy number.

It is not a de Polignac number, because 30064881 - 2² = 30064877 is a prime.

It is a super-2 number, since 2×30064881² = 1807794139088322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30064883) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7680 + ... + 10913.

It is an arithmetic number, because the mean of its divisors is an integer number (2119716).

Almost surely, 2^30064881 is an apocalyptic number.

It is an amenable number.

30064881 is a deficient number, since it is larger than the sum of its proper divisors (20808303).

30064881 is a wasteful number, since it uses less digits than its factorization.

30064881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18621 (or 18614 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 30064881 is about 5483.1451740766. The cubic root of 30064881 is about 310.9470896986.

It can be divided in two parts, 3006 and 4881, that added together give a palindrome (7887).

The spelling of 30064881 in words is "thirty million, sixty-four thousand, eight hundred eighty-one".