1304204022 has 24 divisors (see below), whose sum is σ = 3082664520. Its totient is φ = 395213280.

The previous prime is 1304204017. The next prime is 1304204051. The reversal of 1304204022 is 2204024031.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1304203986 and 1304204004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3293247 + ... + 3293642.

It is an arithmetic number, because the mean of its divisors is an integer number (128444355).

Almost surely, 2^1304204022 is an apocalyptic number.

1304204022 is an abundant number, since it is smaller than the sum of its proper divisors (1778460498).

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

1304204022 is a wasteful number, since it uses less digits than its factorization.

1304204022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6586908 (or 6586905 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1304204022 is about 36113.7649934204. The cubic root of 1304204022 is about 1092.5680888674.

Adding to 1304204022 its reverse (2204024031), we get a palindrome (3508228053).

Subtracting 1304204022 from its reverse (2204024031), we obtain a square (899820009 = 29997²).

The spelling of 1304204022 in words is "one billion, three hundred four million, two hundred four thousand, twenty-two".