30302020 has 48 divisors (see below), whose sum is σ = 73479168. Its totient is φ = 10281600.

The previous prime is 30302011. The next prime is 30302033. The reversal of 30302020 is 2020303.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 30301988 and 30302006.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13069 + ... + 15211.

It is an arithmetic number, because the mean of its divisors is an integer number (1530816).

Almost surely, 2^30302020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30302020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36739584).

30302020 is an abundant number, since it is smaller than the sum of its proper divisors (43177148).

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

30302020 is a wasteful number, since it uses less digits than its factorization.

30302020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2260 (or 2258 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 10.

The square root of 30302020 is about 5504.7270595371. The cubic root of 30302020 is about 311.7624890844.

Adding to 30302020 its reverse (2020303), we get a palindrome (32322323).

It can be divided in two parts, 3030 and 2020, that added together give a triangular number (5050 = T₁₀₀).

The spelling of 30302020 in words is "thirty million, three hundred two thousand, twenty".