1322004 has 24 divisors (see below), whose sum is σ = 3161088. Its totient is φ = 429760.

The previous prime is 1322003. The next prime is 1322011. The reversal of 1322004 is 4002231.

1322004 = T₁₃₇ + T₁₃₈ + ... + T₂₁₈.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 852 + ... + 1835.

It is an arithmetic number, because the mean of its divisors is an integer number (131712).

2^1322004 is an apocalyptic number.

It is an amenable number.

1322004 is an abundant number, since it is smaller than the sum of its proper divisors (1839084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1322004 is a wasteful number, since it uses less digits than its factorization.

1322004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2735 (or 2733 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 1322004 is about 1149.7843276024. The cubic root of 1322004 is about 109.7516158700.

Adding to 1322004 its reverse (4002231), we get a palindrome (5324235).

The spelling of 1322004 in words is "one million, three hundred twenty-two thousand, four".