30852020 has 24 divisors (see below), whose sum is σ = 64899744. Its totient is φ = 12319776.

The previous prime is 30852007. The next prime is 30852047. The reversal of 30852020 is 2025803.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 30851983 and 30852001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16787 + ... + 18533.

It is an arithmetic number, because the mean of its divisors is an integer number (2704156).

Almost surely, 2^30852020 is an apocalyptic number.

It is an amenable number.

30852020 is an abundant number, since it is smaller than the sum of its proper divisors (34047724).

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

30852020 is a wasteful number, since it uses less digits than its factorization.

30852020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639 (or 2637 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 30852020 is about 5554.4594696514. The cubic root of 30852020 is about 313.6374166838.

Adding to 30852020 its reverse (2025803), we get a palindrome (32877823).

The spelling of 30852020 in words is "thirty million, eight hundred fifty-two thousand, twenty".