1304220532 has 12 divisors (see below), whose sum is σ = 2284182180. Its totient is φ = 651597056.

The previous prime is 1304220527. The next prime is 1304220551. The reversal of 1304220532 is 2350224031.

It can be written as a sum of positive squares in 2 ways, for example, as 1049371236 + 254849296 = 32394^2 + 15964^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122557 + ... + 132772.

It is an arithmetic number, because the mean of its divisors is an integer number (190348515).

Almost surely, 2^1304220532 is an apocalyptic number.

It is an amenable number.

1304220532 is a deficient number, since it is larger than the sum of its proper divisors (979961648).

1304220532 is a wasteful number, since it uses less digits than its factorization.

1304220532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256610 (or 256608 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 1304220532 is about 36113.9935758980. The cubic root of 1304220532 is about 1092.5726991438.

Adding to 1304220532 its reverse (2350224031), we get a palindrome (3654444563).

The spelling of 1304220532 in words is "one billion, three hundred four million, two hundred twenty thousand, five hundred thirty-two".