36181328 has 20 divisors (see below), whose sum is σ = 72519540. Its totient is φ = 17466624.

The previous prime is 36181319. The next prime is 36181333. The reversal of 36181328 is 82318163.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20720704 + 15460624 = 4552^2 + 3932^2 .

It is a junction number, because it is equal to n+sod(n) for n = 36181294 and 36181303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38525 + ... + 39452.

It is an arithmetic number, because the mean of its divisors is an integer number (3625977).

Almost surely, 2^36181328 is an apocalyptic number.

It is an amenable number.

36181328 is an abundant number, since it is smaller than the sum of its proper divisors (36338212).

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

36181328 is a wasteful number, since it uses less digits than its factorization.

36181328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78014 (or 78008 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 36181328 is about 6015.0916867493. The cubic root of 36181328 is about 330.7461780553.

The spelling of 36181328 in words is "thirty-six million, one hundred eighty-one thousand, three hundred twenty-eight".