386729172 has 36 divisors (see below), whose sum is σ = 978266016. Its totient is φ = 128817360.

The previous prime is 386729149. The next prime is 386729177. The reversal of 386729172 is 271927683.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386729177) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62983 + ... + 68849.

It is an arithmetic number, because the mean of its divisors is an integer number (27174056).

Almost surely, 2^386729172 is an apocalyptic number.

It is an amenable number.

386729172 is an abundant number, since it is smaller than the sum of its proper divisors (591536844).

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

386729172 is a wasteful number, since it uses less digits than its factorization.

386729172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7708 (or 7703 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 386729172 is about 19665.4308877278. The cubic root of 386729172 is about 728.5661301971.

The spelling of 386729172 in words is "three hundred eighty-six million, seven hundred twenty-nine thousand, one hundred seventy-two".