2081859338 has 32 divisors (see below), whose sum is σ = 3566774736. Its totient is φ = 902827008.

The previous prime is 2081859331. The next prime is 2081859341. The reversal of 2081859338 is 8339581802.

It can be written as a sum of positive squares in 8 ways, for example, as 1021249849 + 1060609489 = 31957^2 + 32567^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2081859292 and 2081859301.

It is not an unprimeable number, because it can be changed into a prime (2081859331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285020 + ... + 292232.

Almost surely, 2^2081859338 is an apocalyptic number.

2081859338 is a deficient number, since it is larger than the sum of its proper divisors (1484915398).

2081859338 is a wasteful number, since it uses less digits than its factorization.

2081859338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7898.

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 2081859338 is about 45627.3967918399. The cubic root of 2081859338 is about 1276.8811065170.

The spelling of 2081859338 in words is "two billion, eighty-one million, eight hundred fifty-nine thousand, three hundred thirty-eight".