30000036 has 96 divisors (see below), whose sum is σ = 83825280. Its totient is φ = 8243200.

The previous prime is 30000023. The next prime is 30000037. The reversal of 30000036 is 63000003.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 29999976 and 30000030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30000037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64846 + ... + 65306.

It is an arithmetic number, because the mean of its divisors is an integer number (873180).

Almost surely, 2^30000036 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 30000036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41912640).

30000036 is an abundant number, since it is smaller than the sum of its proper divisors (53825244).

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

30000036 is a wasteful number, since it uses less digits than its factorization.

30000036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 523 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 30000036 is about 5477.2288613860. The cubic root of 30000036 is about 310.7233748846.

Adding to 30000036 its reverse (63000003), we get a palindrome (93000039).

The spelling of 30000036 in words is "thirty million, thirty-six", and thus it is an aban number, an eban number, and an uban number.