30242521 has 8 divisors (see below), whose sum is σ = 30841344. Its totient is φ = 29648640.

The previous prime is 30242503. The next prime is 30242549. The reversal of 30242521 is 12524203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30242521 - 2¹¹ = 30240473 is a prime.

It is a super-3 number, since 3×30242521³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30242501) 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, 12600 + ... + 14806.

It is an arithmetic number, because the mean of its divisors is an integer number (3855168).

Almost surely, 2^30242521 is an apocalyptic number.

It is an amenable number.

30242521 is a deficient number, since it is larger than the sum of its proper divisors (598823).

30242521 is a wasteful number, since it uses less digits than its factorization.

30242521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2471.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 30242521 is about 5499.3200488788. The cubic root of 30242521 is about 311.5583034615.

Adding to 30242521 its reverse (12524203), we get a palindrome (42766724).

The spelling of 30242521 in words is "thirty million, two hundred forty-two thousand, five hundred twenty-one".