30030020 has 12 divisors (see below), whose sum is σ = 63063084. Its totient is φ = 12012000.

The previous prime is 30029969. The next prime is 30030023. The reversal of 30030020 is 2003003.

It can be written as a sum of positive squares in 2 ways, for example, as 8667136 + 21362884 = 2944^2 + 4622^2 .

It is not an unprimeable number, because it can be changed into a prime (30030023) 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 3 ways as a sum of consecutive naturals, for example, 750731 + ... + 750770.

It is an arithmetic number, because the mean of its divisors is an integer number (5255257).

Almost surely, 2^30030020 is an apocalyptic number.

It is an amenable number.

30030020 is an abundant number, since it is smaller than the sum of its proper divisors (33033064).

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

30030020 is a wasteful number, since it uses less digits than its factorization.

30030020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501510 (or 1501508 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 8.

The square root of 30030020 is about 5479.9653283575. The cubic root of 30030020 is about 310.8268595102.

Adding to 30030020 its reverse (2003003), we get a palindrome (32033023).

The spelling of 30030020 in words is "thirty million, thirty thousand, twenty".