1322000 has 40 divisors (see below), whose sum is σ = 3201432. Its totient is φ = 528000.

The previous prime is 1321997. The next prime is 1322003. The reversal of 1322000 is 2231.

1322000 is nontrivially palindromic in base 7.

It is an interprime number because it is at equal distance from previous prime (1321997) and next prime (1322003).

It can be written as a sum of positive squares in 4 ways, for example, as 4096 + 1317904 = 64^2 + 1148^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (8).

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1670 + ... + 2330.

2^1322000 is an apocalyptic number.

1322000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1322000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1600716).

1322000 is an abundant number, since it is smaller than the sum of its proper divisors (1879432).

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

1322000 is an equidigital number, since it uses as much as digits as its factorization.

1322000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684 (or 668 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 1322000 is about 1149.7825881444. The cubic root of 1322000 is about 109.7515051777.

Adding to 1322000 its reverse (2231), we get a palindrome (1324231).

The spelling of 1322000 in words is "one million, three hundred twenty-two thousand".