1304040456 has 24 divisors (see below), whose sum is σ = 3531776430. Its totient is φ = 434680128.

The previous prime is 1304040443. The next prime is 1304040481. The reversal of 1304040456 is 6540404031.

1304040456 is a `hidden beast` number, since 130 + 40 + 40 + 456 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1246796100 + 57244356 = 35310^2 + 7566^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9055765 + ... + 9055908.

Almost surely, 2^1304040456 is an apocalyptic number.

It is an amenable number.

1304040456 is an abundant number, since it is smaller than the sum of its proper divisors (2227735974).

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

1304040456 is a wasteful number, since it uses less digits than its factorization.

1304040456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18111685 (or 18111678 counting only the distinct ones).

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

The square root of 1304040456 is about 36111.5003288426. The cubic root of 1304040456 is about 1092.5224123577.

Adding to 1304040456 its reverse (6540404031), we get a palindrome (7844444487).

The spelling of 1304040456 in words is "one billion, three hundred four million, forty thousand, four hundred fifty-six".