1304622 has 36 divisors (see below), whose sum is σ = 3112200. Its totient is φ = 394680.

The previous prime is 1304609. The next prime is 1304627. The reversal of 1304622 is 2264031.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1304595 and 1304604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304627) 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 17 ways as a sum of consecutive naturals, for example, 1879 + ... + 2477.

It is an arithmetic number, because the mean of its divisors is an integer number (86450).

2^1304622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1304622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1556100).

1304622 is an abundant number, since it is smaller than the sum of its proper divisors (1807578).

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

1304622 is a wasteful number, since it uses less digits than its factorization.

1304622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629 (or 615 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1304622 is about 1142.2005077919. The cubic root of 1304622 is about 109.2684793678.

Adding to 1304622 its reverse (2264031), we get a palindrome (3568653).

The spelling of 1304622 in words is "one million, three hundred four thousand, six hundred twenty-two".