36009720 has 96 divisors (see below), whose sum is σ = 122148000. Its totient is φ = 9182976.

The previous prime is 36009713. The next prime is 36009739. The reversal of 36009720 is 2790063.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6106 + ... + 10454.

It is an arithmetic number, because the mean of its divisors is an integer number (1272375).

Almost surely, 2^36009720 is an apocalyptic number.

36009720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36009720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61074000).

36009720 is an abundant number, since it is smaller than the sum of its proper divisors (86138280).

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

36009720 is a wasteful number, since it uses less digits than its factorization.

36009720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4389 (or 4382 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 36009720 is about 6000.8099453324. The cubic root of 36009720 is about 330.2224395605. Note that the first 3 decimals are identical.

Adding to 36009720 its reverse (2790063), we get a palindrome (38799783).

The spelling of 36009720 in words is "thirty-six million, nine thousand, seven hundred twenty".