2103729520 has 20 divisors (see below), whose sum is σ = 4891171320. Its totient is φ = 841491776.

The previous prime is 2103729499. The next prime is 2103729521. The reversal of 2103729520 is 259273012.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103729521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13148230 + ... + 13148389.

It is an arithmetic number, because the mean of its divisors is an integer number (244558566).

Almost surely, 2^2103729520 is an apocalyptic number.

2103729520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2103729520 is an abundant number, since it is smaller than the sum of its proper divisors (2787441800).

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

2103729520 is a wasteful number, since it uses less digits than its factorization.

2103729520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26296632 (or 26296626 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 2103729520 is about 45866.4312978457. The cubic root of 2103729520 is about 1281.3368032565.

The spelling of 2103729520 in words is "two billion, one hundred three million, seven hundred twenty-nine thousand, five hundred twenty".