36385812 has 18 divisors (see below), whose sum is σ = 91975338. Its totient is φ = 12128592.

The previous prime is 36385801. The next prime is 36385859. The reversal of 36385812 is 21858363.

36385812 is a `hidden beast` number, since 3 + 638 + 5 + 8 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 29224836 + 7160976 = 5406^2 + 2676^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1010717 = 36385812 / (3 + 6 + 3 + 8 + 5 + 8 + 1 + 2).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 505323 + ... + 505394.

It is an arithmetic number, because the mean of its divisors is an integer number (5109741).

Almost surely, 2^36385812 is an apocalyptic number.

It is an amenable number.

36385812 is an abundant number, since it is smaller than the sum of its proper divisors (55589526).

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

36385812 is a wasteful number, since it uses less digits than its factorization.

36385812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010727 (or 1010722 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 36385812 is about 6032.0653179487. The cubic root of 36385812 is about 331.3680945014.

The spelling of 36385812 in words is "thirty-six million, three hundred eighty-five thousand, eight hundred twelve".