36004381 has 4 divisors (see below), whose sum is σ = 41147872. Its totient is φ = 30860892.

The previous prime is 36004369. The next prime is 36004387. The reversal of 36004381 is 18340063.

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 36004381 - 2⁵ = 36004349 is a prime.

It is a super-2 number, since 2×36004381² = 2592630902386322, 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 (36004387) 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, 2571735 + ... + 2571748.

It is an arithmetic number, because the mean of its divisors is an integer number (10286968).

Almost surely, 2^36004381 is an apocalyptic number.

It is an amenable number.

36004381 is a deficient number, since it is larger than the sum of its proper divisors (5143491).

36004381 is an equidigital number, since it uses as much as digits as its factorization.

36004381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5143490.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 36004381 is about 6000.3650722269. The cubic root of 36004381 is about 330.2061185529.

The spelling of 36004381 in words is "thirty-six million, four thousand, three hundred eighty-one".