38636172 has 36 divisors (see below), whose sum is σ = 103410216. Its totient is φ = 12120960.

The previous prime is 38636107. The next prime is 38636173. The reversal of 38636172 is 27163683.

It is a happy number.

38636172 is a `hidden beast` number, since 3 + 8 + 636 + 17 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (38636173) 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 11 ways as a sum of consecutive naturals, for example, 30954 + ... + 32177.

It is an arithmetic number, because the mean of its divisors is an integer number (2872506).

Almost surely, 2^38636172 is an apocalyptic number.

It is an amenable number.

38636172 is an abundant number, since it is smaller than the sum of its proper divisors (64774044).

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

38636172 is a wasteful number, since it uses less digits than its factorization.

38636172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63158 (or 63153 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 38636172 is about 6215.8001898388. The cubic root of 38636172 is about 338.0633029200.

The spelling of 38636172 in words is "thirty-eight million, six hundred thirty-six thousand, one hundred seventy-two".