1326406 has 4 divisors (see below), whose sum is σ = 1989612. Its totient is φ = 663202.

The previous prime is 1326389. The next prime is 1326419. The reversal of 1326406 is 6046231.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331600 + ... + 331603.

It is an arithmetic number, because the mean of its divisors is an integer number (497403).

2^1326406 is an apocalyptic number.

1326406 is a deficient number, since it is larger than the sum of its proper divisors (663206).

1326406 is an equidigital number, since it uses as much as digits as its factorization.

1326406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663205.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1326406 is about 1151.6970087658. The cubic root of 1326406 is about 109.8732976414.

The spelling of 1326406 in words is "one million, three hundred twenty-six thousand, four hundred six".