30000421 has 4 divisors (see below), whose sum is σ = 32727744. Its totient is φ = 27273100.

The previous prime is 30000419. The next prime is 30000431. The reversal of 30000421 is 12400003.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30000421 - 2¹ = 30000419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30000398 and 30000407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30000401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1363645 + ... + 1363666.

It is an arithmetic number, because the mean of its divisors is an integer number (8181936).

Almost surely, 2^30000421 is an apocalyptic number.

It is an amenable number.

30000421 is a deficient number, since it is larger than the sum of its proper divisors (2727323).

30000421 is a wasteful number, since it uses less digits than its factorization.

30000421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2727322.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 30000421 is about 5477.2640067829. The cubic root of 30000421 is about 310.7247040829.

Adding to 30000421 its reverse (12400003), we get a palindrome (42400424).

The spelling of 30000421 in words is "thirty million, four hundred twenty-one", and thus it is an aban number.