408666452 has 6 divisors (see below), whose sum is σ = 715166298. Its totient is φ = 204333224.

The previous prime is 408666439. The next prime is 408666493. The reversal of 408666452 is 254666804.

It can be written as a sum of positive squares in only one way, i.e., 369177796 + 39488656 = 19214^2 + 6284^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51083303 + ... + 51083310.

It is an arithmetic number, because the mean of its divisors is an integer number (119194383).

Almost surely, 2^408666452 is an apocalyptic number.

It is an amenable number.

408666452 is a deficient number, since it is larger than the sum of its proper divisors (306499846).

408666452 is a wasteful number, since it uses less digits than its factorization.

408666452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102166617 (or 102166615 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 41.

The square root of 408666452 is about 20215.5002906186. The cubic root of 408666452 is about 742.0895724745.

The spelling of 408666452 in words is "four hundred eight million, six hundred sixty-six thousand, four hundred fifty-two".