406495172 has 24 divisors (see below), whose sum is σ = 731852184. Its totient is φ = 197413632.

The previous prime is 406495163. The next prime is 406495181. The reversal of 406495172 is 271594604.

It is an interprime number because it is at equal distance from previous prime (406495163) and next prime (406495181).

It can be written as a sum of positive squares in 4 ways, for example, as 280696516 + 125798656 = 16754^2 + 11216^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98168 + ... + 102224.

It is an arithmetic number, because the mean of its divisors is an integer number (30493841).

Almost surely, 2^406495172 is an apocalyptic number.

It is an amenable number.

406495172 is a deficient number, since it is larger than the sum of its proper divisors (325357012).

406495172 is a wasteful number, since it uses less digits than its factorization.

406495172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4775 (or 4773 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 406495172 is about 20161.7254221954. The cubic root of 406495172 is about 740.7729760810.

The spelling of 406495172 in words is "four hundred six million, four hundred ninety-five thousand, one hundred seventy-two".