406768 has 10 divisors (see below), whose sum is σ = 788144. Its totient is φ = 203376.

The previous prime is 406739. The next prime is 406789. The reversal of 406768 is 867604.

It is a congruent number.

It is an unprimeable number.

406768 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12696 + ... + 12727.

2⁴⁰⁶⁷⁶⁸ is an apocalyptic number.

It is an amenable number.

406768 is a deficient number, since it is larger than the sum of its proper divisors (381376).

406768 is a wasteful number, since it uses less digits than its factorization.

406768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25431 (or 25425 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 406768 is about 637.7836623809. The cubic root of 406768 is about 74.0938667603.

The spelling of 406768 in words is "four hundred six thousand, seven hundred sixty-eight".