1304530122 has 64 divisors (see below), whose sum is σ = 3161908224. Its totient is φ = 350273280.

The previous prime is 1304530111. The next prime is 1304530141. The reversal of 1304530122 is 2210354031.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 829597 + ... + 831167.

It is an arithmetic number, because the mean of its divisors is an integer number (49404816).

Almost surely, 2^1304530122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1304530122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1580954112).

1304530122 is an abundant number, since it is smaller than the sum of its proper divisors (1857378102).

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

1304530122 is a wasteful number, since it uses less digits than its factorization.

1304530122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2763.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1304530122 is about 36118.2796101918. The cubic root of 1304530122 is about 1092.6591423010.

Adding to 1304530122 its reverse (2210354031), we get a palindrome (3514884153).

The spelling of 1304530122 in words is "one billion, three hundred four million, five hundred thirty thousand, one hundred twenty-two".