405968708 has 12 divisors (see below), whose sum is σ = 716040192. Its totient is φ = 201385800.

The previous prime is 405968683. The next prime is 405968723. The reversal of 405968708 is 807869504.

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, 399068 + ... + 400083.

It is an arithmetic number, because the mean of its divisors is an integer number (59670016).

Almost surely, 2^405968708 is an apocalyptic number.

It is an amenable number.

405968708 is a deficient number, since it is larger than the sum of its proper divisors (310071484).

405968708 is a wasteful number, since it uses less digits than its factorization.

405968708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799282 (or 799280 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 405968708 is about 20148.6651667052. The cubic root of 405968708 is about 740.4530388756.

The spelling of 405968708 in words is "four hundred five million, nine hundred sixty-eight thousand, seven hundred eight".