30236020 has 12 divisors (see below), whose sum is σ = 63495684. Its totient is φ = 12094400.

The previous prime is 30235999. The next prime is 30236021. The reversal of 30236020 is 2063203.

It can be written as a sum of positive squares in 2 ways, for example, as 9696996 + 20539024 = 3114^2 + 4532^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30235985 and 30236003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30236021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 755881 + ... + 755920.

It is an arithmetic number, because the mean of its divisors is an integer number (5291307).

Almost surely, 2^30236020 is an apocalyptic number.

It is an amenable number.

30236020 is an abundant number, since it is smaller than the sum of its proper divisors (33259664).

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

30236020 is a wasteful number, since it uses less digits than its factorization.

30236020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511810 (or 1511808 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 30236020 is about 5498.7289440379. The cubic root of 30236020 is about 311.5359774383.

Adding to 30236020 its reverse (2063203), we get a palindrome (32299223).

The spelling of 30236020 in words is "thirty million, two hundred thirty-six thousand, twenty".