395522172 has 36 divisors (see below), whose sum is σ = 1014720616. Its totient is φ = 129872160.

The previous prime is 395522167. The next prime is 395522177. The reversal of 395522172 is 271225593.

395522172 is a `hidden beast` number, since 39 + 552 + 2 + 1 + 72 = 666.

It is an interprime number because it is at equal distance from previous prime (395522167) and next prime (395522177).

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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395522177) 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, 79579 + ... + 84402.

Almost surely, 2^395522172 is an apocalyptic number.

It is an amenable number.

395522172 is an abundant number, since it is smaller than the sum of its proper divisors (619198444).

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

395522172 is a wasteful number, since it uses less digits than its factorization.

395522172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164058 (or 164053 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 395522172 is about 19887.7392380331. The cubic root of 395522172 is about 734.0465660553.

The spelling of 395522172 in words is "three hundred ninety-five million, five hundred twenty-two thousand, one hundred seventy-two".