1993416328 has 16 divisors (see below), whose sum is σ = 3957517980. Its totient is φ = 938078208.

The previous prime is 1993416323. The next prime is 1993416367. The reversal of 1993416328 is 8236143991.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1831668804 + 161747524 = 42798^2 + 12718^2 .

It is not an unprimeable number, because it can be changed into a prime (1993416323) 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, 7328601 + ... + 7328872.

Almost surely, 2^1993416328 is an apocalyptic number.

It is an amenable number.

1993416328 is a deficient number, since it is larger than the sum of its proper divisors (1964101652).

1993416328 is a wasteful number, since it uses less digits than its factorization.

1993416328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14657496 (or 14657492 counting only the distinct ones).

The product of its digits is 279936, while the sum is 46.

The square root of 1993416328 is about 44647.6911833076. The cubic root of 1993416328 is about 1258.5370456541.

It can be divided in two parts, 1993416 and 328, that added together give a square (1993744 = 1412²).

The spelling of 1993416328 in words is "one billion, nine hundred ninety-three million, four hundred sixteen thousand, three hundred twenty-eight".