1322464 has 72 divisors (see below), whose sum is σ = 3249288. Its totient is φ = 522240.

The previous prime is 1322449. The next prime is 1322467. The reversal of 1322464 is 4642231.

It is a happy number.

It is a super-2 number, since 2×1322464² = 3497822062592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322467) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77784 + ... + 77800.

It is an arithmetic number, because the mean of its divisors is an integer number (45129).

2^1322464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1322464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1624644).

1322464 is an abundant number, since it is smaller than the sum of its proper divisors (1926824).

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

1322464 is a wasteful number, since it uses less digits than its factorization.

1322464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68 (or 43 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 1322464 is about 1149.9843477196. The cubic root of 1322464 is about 109.7643439931.

Adding to 1322464 its reverse (4642231), we get a palindrome (5964695).

The spelling of 1322464 in words is "one million, three hundred twenty-two thousand, four hundred sixty-four".