406396 has 6 divisors (see below), whose sum is σ = 711200. Its totient is φ = 203196.

The previous prime is 406381. The next prime is 406397. The reversal of 406396 is 693604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50796 + ... + 50803.

2⁴⁰⁶³⁹⁶ is an apocalyptic number.

It is an amenable number.

406396 is a deficient number, since it is larger than the sum of its proper divisors (304804).

406396 is a wasteful number, since it uses less digits than its factorization.

406396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101603 (or 101601 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 406396 is about 637.4919607336. The cubic root of 406396 is about 74.0712729435.

The spelling of 406396 in words is "four hundred six thousand, three hundred ninety-six".