1322906 has 32 divisors (see below), whose sum is σ = 2349648. Its totient is φ = 552960.

The previous prime is 1322903. The next prime is 1322917. The reversal of 1322906 is 6092231.

It can be written as a sum of positive squares in 8 ways, for example, as 292681 + 1030225 = 541^2 + 1015^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322903) 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 in 15 ways as a sum of consecutive naturals, for example, 18086 + ... + 18158.

2^1322906 is an apocalyptic number.

1322906 is a deficient number, since it is larger than the sum of its proper divisors (1026742).

1322906 is a wasteful number, since it uses less digits than its factorization.

1322906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1322906 is about 1150.1765081934. The cubic root of 1322906 is about 109.7765712789.

The spelling of 1322906 in words is "one million, three hundred twenty-two thousand, nine hundred six".