30020420 has 12 divisors (see below), whose sum is σ = 63042924. Its totient is φ = 12008160.

The previous prime is 30020413. The next prime is 30020467. The reversal of 30020420 is 2402003.

It can be written as a sum of positive squares in 2 ways, for example, as 20484676 + 9535744 = 4526^2 + 3088^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 750491 + ... + 750530.

It is an arithmetic number, because the mean of its divisors is an integer number (5253577).

Almost surely, 2^30020420 is an apocalyptic number.

It is an amenable number.

30020420 is an abundant number, since it is smaller than the sum of its proper divisors (33022504).

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

30020420 is a wasteful number, since it uses less digits than its factorization.

30020420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501030 (or 1501028 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 30020420 is about 5479.0893403923. The cubic root of 30020420 is about 310.7937342589.

Adding to 30020420 its reverse (2402003), we get a palindrome (32422423).

The spelling of 30020420 in words is "thirty million, twenty thousand, four hundred twenty".