1304521434 has 12 divisors (see below), whose sum is σ = 2826463146. Its totient is φ = 434840472.

The previous prime is 1304521433. The next prime is 1304521459. The reversal of 1304521434 is 4341254031.

It is a happy number.

1304521434 is a `hidden beast` number, since 130 + 4 + 521 + 4 + 3 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1264869225 + 39652209 = 35565^2 + 6297^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1304521398 and 1304521407.

It is not an unprimeable number, because it can be changed into a prime (1304521433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36236689 + ... + 36236724.

Almost surely, 2^1304521434 is an apocalyptic number.

1304521434 is an abundant number, since it is smaller than the sum of its proper divisors (1521941712).

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

1304521434 is a wasteful number, since it uses less digits than its factorization.

1304521434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72473421 (or 72473418 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 1304521434 is about 36118.1593384824. The cubic root of 1304521434 is about 1092.6567166400.

Adding to 1304521434 its reverse (4341254031), we get a palindrome (5645775465).

The spelling of 1304521434 in words is "one billion, three hundred four million, five hundred twenty-one thousand, four hundred thirty-four".