408172 has 6 divisors (see below), whose sum is σ = 714308. Its totient is φ = 204084.

The previous prime is 408169. The next prime is 408173. The reversal of 408172 is 271804.

It is not an unprimeable number, because it can be changed into a prime (408173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51018 + ... + 51025.

2⁴⁰⁸¹⁷² is an apocalyptic number.

It is an amenable number.

408172 is a deficient number, since it is larger than the sum of its proper divisors (306136).

408172 is a wasteful number, since it uses less digits than its factorization.

408172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102047 (or 102045 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 408172 is about 638.8834009426. The cubic root of 408172 is about 74.1790163054.

Adding to 408172 its reverse (271804), we get a palindrome (679976).

The spelling of 408172 in words is "four hundred eight thousand, one hundred seventy-two".