2081622940 has 24 divisors (see below), whose sum is σ = 4412266992. Its totient is φ = 824866560.

The previous prime is 2081622901. The next prime is 2081622941. The reversal of 2081622940 is 492261802.

It is a junction number, because it is equal to n+sod(n) for n = 2081622896 and 2081622905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081622941) 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, 484221 + ... + 488500.

It is an arithmetic number, because the mean of its divisors is an integer number (183844458).

Almost surely, 2^2081622940 is an apocalyptic number.

2081622940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2081622940 is an abundant number, since it is smaller than the sum of its proper divisors (2330644052).

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

2081622940 is a wasteful number, since it uses less digits than its factorization.

2081622940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972837 (or 972835 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 2081622940 is about 45624.8061913692. The cubic root of 2081622940 is about 1276.8327741504.

The spelling of 2081622940 in words is "two billion, eighty-one million, six hundred twenty-two thousand, nine hundred forty".