2020492391 has 2 divisors, whose sum is σ = 2020492392. Its totient is φ = 2020492390.

The previous prime is 2020492373. The next prime is 2020492399. The reversal of 2020492391 is 1932940202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2020492391 - 2²⁶ = 1953383527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2020492399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010246195 + 1010246196.

It is an arithmetic number, because the mean of its divisors is an integer number (1010246196).

Almost surely, 2^2020492391 is an apocalyptic number.

2020492391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020492391 is an equidigital number, since it uses as much as digits as its factorization.

2020492391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 2020492391 is about 44949.8875526958. The cubic root of 2020492391 is about 1264.2095685391.

The spelling of 2020492391 in words is "two billion, twenty million, four hundred ninety-two thousand, three hundred ninety-one".