1993513020 has 48 divisors (see below), whose sum is σ = 5603599008. Its totient is φ = 529530880.

The previous prime is 1993512991. The next prime is 1993513021. The reversal of 1993513020 is 203153991.

1993513020 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1993513021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49221 + ... + 80060.

It is an arithmetic number, because the mean of its divisors is an integer number (116741646).

Almost surely, 2^1993513020 is an apocalyptic number.

1993513020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1993513020 is an abundant number, since it is smaller than the sum of its proper divisors (3610085988).

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

1993513020 is a wasteful number, since it uses less digits than its factorization.

1993513020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129550 (or 129548 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 33.

The square root of 1993513020 is about 44648.7740033251. The cubic root of 1993513020 is about 1258.5573940537.

The spelling of 1993513020 in words is "one billion, nine hundred ninety-three million, five hundred thirteen thousand, twenty".