30010020 has 24 divisors (see below), whose sum is σ = 84028224. Its totient is φ = 8002656.

The previous prime is 30009979. The next prime is 30010021. The reversal of 30010020 is 2001003.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a junction number, because it is equal to n+sod(n) for n = 30009990 and 30010008.

It is not an unprimeable number, because it can be changed into a prime (30010021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250024 + ... + 250143.

It is an arithmetic number, because the mean of its divisors is an integer number (3501176).

Almost surely, 2^30010020 is an apocalyptic number.

30010020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30010020 is an abundant number, since it is smaller than the sum of its proper divisors (54018204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30010020 is a wasteful number, since it uses less digits than its factorization.

30010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500179 (or 500177 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 6.

The square root of 30010020 is about 5478.1401953583. The cubic root of 30010020 is about 310.7578405999.

Adding to 30010020 its reverse (2001003), we get a palindrome (32011023).

The spelling of 30010020 in words is "thirty million, ten thousand, twenty".