30080021 has 16 divisors (see below), whose sum is σ = 34992000. Its totient is φ = 25648128.

The previous prime is 30080009. The next prime is 30080023. The reversal of 30080021 is 12008003.

It is not a de Polignac number, because 30080021 - 2⁶ = 30079957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30079978 and 30080005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30080023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5405 + ... + 9453.

It is an arithmetic number, because the mean of its divisors is an integer number (2187000).

Almost surely, 2^30080021 is an apocalyptic number.

It is an amenable number.

30080021 is a deficient number, since it is larger than the sum of its proper divisors (4911979).

30080021 is a wasteful number, since it uses less digits than its factorization.

30080021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4108.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 30080021 is about 5484.5255947985. The cubic root of 30080021 is about 310.9992762672. Note that the first 3 decimals are identical.

Adding to 30080021 its reverse (12008003), we get a palindrome (42088024).

It can be divided in two parts, 3008002 and 1, that added together give a palindrome (3008003).

The spelling of 30080021 in words is "thirty million, eighty thousand, twenty-one".