36381385 has 4 divisors (see below), whose sum is σ = 43657668. Its totient is φ = 29105104.

The previous prime is 36381353. The next prime is 36381403. The reversal of 36381385 is 58318363.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5345344 + 31036041 = 2312^2 + 5571^2 .

It is a cyclic number.

It is not a de Polignac number, because 36381385 - 2⁵ = 36381353 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3638134 + ... + 3638143.

It is an arithmetic number, because the mean of its divisors is an integer number (10914417).

Almost surely, 2^36381385 is an apocalyptic number.

It is an amenable number.

36381385 is a deficient number, since it is larger than the sum of its proper divisors (7276283).

36381385 is an equidigital number, since it uses as much as digits as its factorization.

36381385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7276282.

The product of its digits is 51840, while the sum is 37.

The square root of 36381385 is about 6031.6983512109. The cubic root of 36381385 is about 331.3546549585.

The spelling of 36381385 in words is "thirty-six million, three hundred eighty-one thousand, three hundred eighty-five".