36438919 has 8 divisors (see below), whose sum is σ = 41034240. Its totient is φ = 32057400.

The previous prime is 36438917. The next prime is 36438929. The reversal of 36438919 is 91983463.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 36438919 - 2¹ = 36438917 is a prime.

It is a super-2 number, since 2×36438919² = 2655589635777122, 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 (36438911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53089 + ... + 53770.

It is an arithmetic number, because the mean of its divisors is an integer number (5129280).

Almost surely, 2^36438919 is an apocalyptic number.

36438919 is a deficient number, since it is larger than the sum of its proper divisors (4595321).

36438919 is a wasteful number, since it uses less digits than its factorization.

36438919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106901.

The product of its digits is 139968, while the sum is 43.

The square root of 36438919 is about 6036.4657706310. The cubic root of 36438919 is about 331.5292324986.

The spelling of 36438919 in words is "thirty-six million, four hundred thirty-eight thousand, nine hundred nineteen".