1328605372 has 12 divisors (see below), whose sum is σ = 2325328600. Its totient is φ = 664225776.

The previous prime is 1328605351. The next prime is 1328605379. The reversal of 1328605372 is 2735068231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328605379) 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, 39718 + ... + 65074.

Almost surely, 2^1328605372 is an apocalyptic number.

It is an amenable number.

1328605372 is a deficient number, since it is larger than the sum of its proper divisors (996723228).

1328605372 is a wasteful number, since it uses less digits than its factorization.

1328605372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38460 (or 38458 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 1328605372 is about 36450.0393964122. The cubic root of 1328605372 is about 1099.3399268565.

The spelling of 1328605372 in words is "one billion, three hundred twenty-eight million, six hundred five thousand, three hundred seventy-two".