2105257320 has 96 divisors (see below), whose sum is σ = 7078055400. Its totient is φ = 542040576.

The previous prime is 2105257309. The next prime is 2105257331. The reversal of 2105257320 is 237525012.

2105257320 is a `hidden beast` number, since 21 + 0 + 52 + 573 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (2105257309) and next prime (2105257331).

It can be written as a sum of positive squares in 4 ways, for example, as 958893156 + 1146364164 = 30966^2 + 33858^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90387 + ... + 111266.

Almost surely, 2^2105257320 is an apocalyptic number.

2105257320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2105257320 is an abundant number, since it is smaller than the sum of its proper divisors (4972798080).

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

2105257320 is a wasteful number, since it uses less digits than its factorization.

2105257320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201699 (or 201692 counting only the distinct ones).

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

The square root of 2105257320 is about 45883.0831570852. The cubic root of 2105257320 is about 1281.6469116682.

The spelling of 2105257320 in words is "two billion, one hundred five million, two hundred fifty-seven thousand, three hundred twenty".