2040021983 has 2 divisors, whose sum is σ = 2040021984. Its totient is φ = 2040021982.

The previous prime is 2040021979. The next prime is 2040022013. The reversal of 2040021983 is 3891200402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2040021983 - 2² = 2040021979 is a prime.

It is a super-2 number, since 2×2040021983² = 8323379382246504578, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2040021923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1020010991 + 1020010992.

It is an arithmetic number, because the mean of its divisors is an integer number (1020010992).

Almost surely, 2^2040021983 is an apocalyptic number.

2040021983 is a deficient number, since it is larger than the sum of its proper divisors (1).

2040021983 is an equidigital number, since it uses as much as digits as its factorization.

2040021983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 2040021983 is about 45166.6025177896. The cubic root of 2040021983 is about 1268.2696966607.

The spelling of 2040021983 in words is "two billion, forty million, twenty-one thousand, nine hundred eighty-three".