36868381 has 4 divisors (see below), whose sum is σ = 40220064. Its totient is φ = 33516700.

The previous prime is 36868369. The next prime is 36868441. The reversal of 36868381 is 18386863.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 36868381 - 2¹⁵ = 36835613 is a prime.

It is a super-2 number, since 2×36868381² = 2718555035122322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36868301) by changing a digit.

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, 1675825 + ... + 1675846.

It is an arithmetic number, because the mean of its divisors is an integer number (10055016).

Almost surely, 2^36868381 is an apocalyptic number.

It is an amenable number.

36868381 is a deficient number, since it is larger than the sum of its proper divisors (3351683).

36868381 is a wasteful number, since it uses less digits than its factorization.

36868381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3351682.

The product of its digits is 165888, while the sum is 43.

The square root of 36868381 is about 6071.9338764516. The cubic root of 36868381 is about 332.8265952622.

It can be divided in two parts, 36868 and 381, that added together give a square (37249 = 193²).

The spelling of 36868381 in words is "thirty-six million, eight hundred sixty-eight thousand, three hundred eighty-one".