30389252421 has 8 divisors (see below), whose sum is σ = 44202549024. Its totient is φ = 18417728720.

The previous prime is 30389252419. The next prime is 30389252437. The reversal of 30389252421 is 12425298303.

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 30389252421 - 2¹ = 30389252419 is a prime.

It is a super-2 number, since 2×30389252421² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30389252421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30389252461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460443186 + ... + 460443251.

It is an arithmetic number, because the mean of its divisors is an integer number (5525318628).

Almost surely, 2^30389252421 is an apocalyptic number.

It is an amenable number.

30389252421 is a deficient number, since it is larger than the sum of its proper divisors (13813296603).

30389252421 is a wasteful number, since it uses less digits than its factorization.

30389252421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920886451.

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 30389252421 in words is "thirty billion, three hundred eighty-nine million, two hundred fifty-two thousand, four hundred twenty-one".