2081929540 has 48 divisors (see below), whose sum is σ = 4403113344. Its totient is φ = 826880000.

The previous prime is 2081929537. The next prime is 2081929547. The reversal of 2081929540 is 459291802.

It is a super-2 number, since 2×2081929540² = 8668861219049223200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2081929493 and 2081929502.

It is not an unprimeable number, because it can be changed into a prime (2081929547) 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, 3217497 + ... + 3218143.

It is an arithmetic number, because the mean of its divisors is an integer number (91731528).

Almost surely, 2^2081929540 is an apocalyptic number.

2081929540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2081929540 is an abundant number, since it is smaller than the sum of its proper divisors (2321183804).

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

2081929540 is a wasteful number, since it uses less digits than its factorization.

2081929540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548 (or 1546 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 2081929540 is about 45628.1660819279. The cubic root of 2081929540 is about 1276.8954588475.

The spelling of 2081929540 in words is "two billion, eighty-one million, nine hundred twenty-nine thousand, five hundred forty".