1993596920 has 128 divisors (see below), whose sum is σ = 5242406400. Its totient is φ = 668238336.

The previous prime is 1993596911. The next prime is 1993596923. The reversal of 1993596920 is 296953991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1993596923) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2532767 + ... + 2533553.

It is an arithmetic number, because the mean of its divisors is an integer number (40956300).

Almost surely, 2^1993596920 is an apocalyptic number.

1993596920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1993596920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2621203200).

1993596920 is an abundant number, since it is smaller than the sum of its proper divisors (3248809480).

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

1993596920 is a wasteful number, since it uses less digits than its factorization.

1993596920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997 (or 993 counting only the distinct ones).

The product of its (nonzero) digits is 1180980, while the sum is 53.

The square root of 1993596920 is about 44649.7135489132. The cubic root of 1993596920 is about 1258.5750499010.

The spelling of 1993596920 in words is "one billion, nine hundred ninety-three million, five hundred ninety-six thousand, nine hundred twenty".