406976 has 14 divisors (see below), whose sum is σ = 807720. Its totient is φ = 203456.

The previous prime is 406969. The next prime is 406981. The reversal of 406976 is 679604.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 406976.

It is an unprimeable number.

406976 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, 3116 + ... + 3243.

2⁴⁰⁶⁹⁷⁶ is an apocalyptic number.

It is an amenable number.

406976 is a deficient number, since it is larger than the sum of its proper divisors (400744).

406976 is an equidigital number, since it uses as much as digits as its factorization.

406976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6371 (or 6361 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 406976 is about 637.9467062381. The cubic root of 406976 is about 74.1064938582.

The spelling of 406976 in words is "four hundred six thousand, nine hundred seventy-six".