405740168 has 16 divisors (see below), whose sum is σ = 773658000. Its totient is φ = 199431376.

The previous prime is 405740149. The next prime is 405740191. The reversal of 405740168 is 861047504.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429338 + ... + 430281.

It is an arithmetic number, because the mean of its divisors is an integer number (48353625).

Almost surely, 2^405740168 is an apocalyptic number.

It is an amenable number.

405740168 is a deficient number, since it is larger than the sum of its proper divisors (367917832).

405740168 is a wasteful number, since it uses less digits than its factorization.

405740168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859684 (or 859680 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 405740168 is about 20142.9930248710. The cubic root of 405740168 is about 740.3140668327.

The spelling of 405740168 in words is "four hundred five million, seven hundred forty thousand, one hundred sixty-eight".