1328657496 has 16 divisors (see below), whose sum is σ = 3321643800. Its totient is φ = 442885824.

The previous prime is 1328657483. The next prime is 1328657507. The reversal of 1328657496 is 6947568231.

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, 27680341 + ... + 27680388.

Almost surely, 2^1328657496 is an apocalyptic number.

It is an amenable number.

1328657496 is an abundant number, since it is smaller than the sum of its proper divisors (1992986304).

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

1328657496 is a wasteful number, since it uses less digits than its factorization.

1328657496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55360738 (or 55360734 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 51.

The square root of 1328657496 is about 36450.7543954854. The cubic root of 1328657496 is about 1099.3543031456.

The spelling of 1328657496 in words is "one billion, three hundred twenty-eight million, six hundred fifty-seven thousand, four hundred ninety-six".