30206120 has 64 divisors (see below), whose sum is σ = 78174720. Its totient is φ = 10289664.

The previous prime is 30206119. The next prime is 30206147. The reversal of 30206120 is 2160203.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 30206095 and 30206104.

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, 65009 + ... + 65471.

It is an arithmetic number, because the mean of its divisors is an integer number (1221480).

Almost surely, 2^30206120 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 30206120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39087360).

30206120 is an abundant number, since it is smaller than the sum of its proper divisors (47968600).

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

30206120 is a wasteful number, since it uses less digits than its factorization.

30206120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714 (or 710 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 30206120 is about 5496.0094614183. The cubic root of 30206120 is about 311.4332523014.

Adding to 30206120 its reverse (2160203), we get a palindrome (32366323).

The spelling of 30206120 in words is "thirty million, two hundred six thousand, one hundred twenty".