30421033 has 4 divisors (see below), whose sum is σ = 32022160. Its totient is φ = 28819908.

The previous prime is 30421031. The next prime is 30421051. The reversal of 30421033 is 33012403.

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 30421033 - 2¹ = 30421031 is a prime.

It is a super-3 number, since 3×30421033³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30420998 and 30421016.

It is not an unprimeable number, because it can be changed into a prime (30421031) 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, 800535 + ... + 800572.

It is an arithmetic number, because the mean of its divisors is an integer number (8005540).

Almost surely, 2^30421033 is an apocalyptic number.

It is an amenable number.

30421033 is a deficient number, since it is larger than the sum of its proper divisors (1601127).

30421033 is a wasteful number, since it uses less digits than its factorization.

30421033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601126.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 30421033 is about 5515.5265387812. The cubic root of 30421033 is about 312.1701111840.

Adding to 30421033 its reverse (33012403), we get a palindrome (63433436).

The spelling of 30421033 in words is "thirty million, four hundred twenty-one thousand, thirty-three".