1304728532 has 12 divisors (see below), whose sum is σ = 2336374656. Its totient is φ = 637192920.

The previous prime is 1304728517. The next prime is 1304728541. The reversal of 1304728532 is 2358274031.

It is a junction number, because it is equal to n+sod(n) for n = 1304728492 and 1304728501.

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, 3792644 + ... + 3792987.

It is an arithmetic number, because the mean of its divisors is an integer number (194697888).

Almost surely, 2^1304728532 is an apocalyptic number.

It is an amenable number.

1304728532 is a deficient number, since it is larger than the sum of its proper divisors (1031646124).

1304728532 is a wasteful number, since it uses less digits than its factorization.

1304728532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7585678 (or 7585676 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 1304728532 is about 36121.0261758993. The cubic root of 1304728532 is about 1092.7145347898.

The spelling of 1304728532 in words is "one billion, three hundred four million, seven hundred twenty-eight thousand, five hundred thirty-two".