1304021204 has 12 divisors (see below), whose sum is σ = 2330591424. Its totient is φ = 638137944.

The previous prime is 1304021153. The next prime is 1304021207. The reversal of 1304021204 is 4021204031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304021207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3467954 + ... + 3468329.

It is an arithmetic number, because the mean of its divisors is an integer number (194215952).

Almost surely, 2^1304021204 is an apocalyptic number.

It is an amenable number.

1304021204 is a deficient number, since it is larger than the sum of its proper divisors (1026570220).

1304021204 is a wasteful number, since it uses less digits than its factorization.

1304021204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6936334 (or 6936332 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1304021204 is about 36111.2337645780. The cubic root of 1304021204 is about 1092.5170359025.

Adding to 1304021204 its reverse (4021204031), we get a palindrome (5325225235).

The spelling of 1304021204 in words is "one billion, three hundred four million, twenty-one thousand, two hundred four".