1322407 has 4 divisors (see below), whose sum is σ = 1326136. Its totient is φ = 1318680.

The previous prime is 1322389. The next prime is 1322423. The reversal of 1322407 is 7042231.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1322407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322437) 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 3 ways as a sum of consecutive naturals, for example, 1269 + ... + 2062.

It is an arithmetic number, because the mean of its divisors is an integer number (331534).

2^1322407 is an apocalyptic number.

1322407 is a deficient number, since it is larger than the sum of its proper divisors (3729).

1322407 is an equidigital number, since it uses as much as digits as its factorization.

1322407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3728.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 1322407 is about 1149.9595645065. The cubic root of 1322407 is about 109.7627669728.

Adding to 1322407 its reverse (7042231), we get a palindrome (8364638).

The spelling of 1322407 in words is "one million, three hundred twenty-two thousand, four hundred seven".