30034021 has 8 divisors (see below), whose sum is σ = 31855104. Its totient is φ = 28255920.

The previous prime is 30034007. The next prime is 30034027. The reversal of 30034021 is 12043003.

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 30034021 - 2⁵ = 30033989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30033992 and 30034010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30034027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9301 + ... + 12106.

It is an arithmetic number, because the mean of its divisors is an integer number (3981888).

Almost surely, 2^30034021 is an apocalyptic number.

It is an amenable number.

30034021 is a deficient number, since it is larger than the sum of its proper divisors (1821083).

30034021 is a wasteful number, since it uses less digits than its factorization.

30034021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21491.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 30034021 is about 5480.3303732531. The cubic root of 30034021 is about 310.8406630646.

Adding to 30034021 its reverse (12043003), we get a palindrome (42077024).

The spelling of 30034021 in words is "thirty million, thirty-four thousand, twenty-one".