2105473500 has 576 divisors, whose sum is σ = 7835283456. Its totient is φ = 489888000.

The previous prime is 2105473471. The next prime is 2105473507. The reversal of 2105473500 is 53745012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105473507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 48964479 + ... + 48964521.

Almost surely, 2^2105473500 is an apocalyptic number.

2105473500 is a gapful number since it is divisible by the number (20) 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 2105473500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3917641728).

2105473500 is an abundant number, since it is smaller than the sum of its proper divisors (5729809956).

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

2105473500 is a wasteful number, since it uses less digits than its factorization.

2105473500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 2105473500 is about 45885.4388668126. The cubic root of 2105473500 is about 1281.6907791397.

The spelling of 2105473500 in words is "two billion, one hundred five million, four hundred seventy-three thousand, five hundred".