2081628142 has 32 divisors (see below), whose sum is σ = 3478533984. Its totient is φ = 926323200.

The previous prime is 2081628137. The next prime is 2081628161. The reversal of 2081628142 is 2418261802.

It is a junction number, because it is equal to n+sod(n) for n = 2081628098 and 2081628107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215292 + ... + 224752.

It is an arithmetic number, because the mean of its divisors is an integer number (108704187).

Almost surely, 2^2081628142 is an apocalyptic number.

2081628142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2081628142 is a deficient number, since it is larger than the sum of its proper divisors (1396905842).

2081628142 is a wasteful number, since it uses less digits than its factorization.

2081628142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9684.

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 2081628142 is about 45624.8631997949. The cubic root of 2081628142 is about 1276.8338377562.

Adding to 2081628142 its reverse (2418261802), we get a palindrome (4499889944).

The spelling of 2081628142 in words is "two billion, eighty-one million, six hundred twenty-eight thousand, one hundred forty-two".