36438172 has 12 divisors (see below), whose sum is σ = 64022616. Its totient is φ = 18146000.

The previous prime is 36438139. The next prime is 36438173. The reversal of 36438172 is 27183463.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36438173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17143 + ... + 19150.

It is an arithmetic number, because the mean of its divisors is an integer number (5335218).

Almost surely, 2^36438172 is an apocalyptic number.

It is an amenable number.

36438172 is a deficient number, since it is larger than the sum of its proper divisors (27584444).

36438172 is a wasteful number, since it uses less digits than its factorization.

36438172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36548 (or 36546 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 36438172 is about 6036.4038963608. The cubic root of 36438172 is about 331.5269670268.

The spelling of 36438172 in words is "thirty-six million, four hundred thirty-eight thousand, one hundred seventy-two".