36440320 has 144 divisors (see below), whose sum is σ = 103017600. Its totient is φ = 12343296.

The previous prime is 36440311. The next prime is 36440321. The reversal of 36440320 is 2304463.

It is a junction number, because it is equal to n+sod(n) for n = 36440291 and 36440300.

It is not an unprimeable number, because it can be changed into a prime (36440321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 438999 + ... + 439081.

It is an arithmetic number, because the mean of its divisors is an integer number (715400).

Almost surely, 2^36440320 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 36440320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51508800).

36440320 is an abundant number, since it is smaller than the sum of its proper divisors (66577280).

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

36440320 is an frugal number, since it uses more digits than its factorization.

36440320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 36440320 is about 6036.5818142389. The cubic root of 36440320 is about 331.5334813120.

Adding to 36440320 its reverse (2304463), we get a palindrome (38744783).

The spelling of 36440320 in words is "thirty-six million, four hundred forty thousand, three hundred twenty".