2101730904 has 192 divisors, whose sum is σ = 7374931200. Its totient is φ = 525097728.

The previous prime is 2101730887. The next prime is 2101730921. The reversal of 2101730904 is 4090371012.

It is an interprime number because it is at equal distance from previous prime (2101730887) and next prime (2101730921).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 116047 + ... + 132929.

It is an arithmetic number, because the mean of its divisors is an integer number (38411100).

Almost surely, 2^2101730904 is an apocalyptic number.

2101730904 is a gapful number since it is divisible by the number (24) 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 2101730904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3687465600).

2101730904 is an abundant number, since it is smaller than the sum of its proper divisors (5273200296).

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

2101730904 is a wasteful number, since it uses less digits than its factorization.

2101730904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16934 (or 16927 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 2101730904 is about 45844.6387705258. The cubic root of 2101730904 is about 1280.9309032233.

The spelling of 2101730904 in words is "two billion, one hundred one million, seven hundred thirty thousand, nine hundred four".