2105730386 has 16 divisors (see below), whose sum is σ = 3230199000. Its totient is φ = 1029145728.

The previous prime is 2105730383. The next prime is 2105730391. The reversal of 2105730386 is 6830375012.

It can be written as a sum of positive squares in 4 ways, for example, as 1903664161 + 202066225 = 43631^2 + 14215^2 .

It is not an unprimeable number, because it can be changed into a prime (2105730383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8411 + ... + 65438.

Almost surely, 2^2105730386 is an apocalyptic number.

2105730386 is a deficient number, since it is larger than the sum of its proper divisors (1124468614).

2105730386 is a wasteful number, since it uses less digits than its factorization.

2105730386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74173.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 2105730386 is about 45888.2379918863. The cubic root of 2105730386 is about 1281.7429028114.

The spelling of 2105730386 in words is "two billion, one hundred five million, seven hundred thirty thousand, three hundred eighty-six".