1304355052 has 96 divisors (see below), whose sum is σ = 3082060800. Its totient is φ = 466456320.

The previous prime is 1304355049. The next prime is 1304355053. The reversal of 1304355052 is 2505534031.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 1304355052.

It is not an unprimeable number, because it can be changed into a prime (1304355053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 795978 + ... + 797614.

It is an arithmetic number, because the mean of its divisors is an integer number (32104800).

Almost surely, 2^1304355052 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 1304355052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1541030400).

1304355052 is an abundant number, since it is smaller than the sum of its proper divisors (1777705748).

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

1304355052 is a wasteful number, since it uses less digits than its factorization.

1304355052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1871 (or 1869 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 1304355052 is about 36115.8559638284. The cubic root of 1304355052 is about 1092.6102612542.

Adding to 1304355052 its reverse (2505534031), we get a palindrome (3809889083).

The spelling of 1304355052 in words is "one billion, three hundred four million, three hundred fifty-five thousand, fifty-two".