36331520 has 56 divisors (see below), whose sum is σ = 87288624. Its totient is φ = 14516224.

The previous prime is 36331511. The next prime is 36331523. The reversal of 36331520 is 2513363.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36331523) 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, 40517 + ... + 41403.

Almost surely, 2^36331520 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 36331520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43644312).

36331520 is an abundant number, since it is smaller than the sum of its proper divisors (50957104).

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

36331520 is an frugal number, since it uses more digits than its factorization.

36331520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918 (or 894 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 36331520 is about 6027.5633551212. The cubic root of 36331520 is about 331.2031987991.

Adding to 36331520 its reverse (2513363), we get a palindrome (38844883).

The spelling of 36331520 in words is "thirty-six million, three hundred thirty-one thousand, five hundred twenty".