1993649424 has 40 divisors (see below), whose sum is σ = 5546436672. Its totient is φ = 613430400.

The previous prime is 1993649417. The next prime is 1993649467. The reversal of 1993649424 is 4249463991.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1596852 + ... + 1598099.

Almost surely, 2^1993649424 is an apocalyptic number.

It is an amenable number.

1993649424 is an abundant number, since it is smaller than the sum of its proper divisors (3552787248).

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

1993649424 is a wasteful number, since it uses less digits than its factorization.

1993649424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3194975 (or 3194969 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 51.

The square root of 1993649424 is about 44650.3014995420. The cubic root of 1993649424 is about 1258.5860985477.

The spelling of 1993649424 in words is "one billion, nine hundred ninety-three million, six hundred forty-nine thousand, four hundred twenty-four".