2920840423 has 2 divisors, whose sum is σ = 2920840424. Its totient is φ = 2920840422.

The previous prime is 2920840399. The next prime is 2920840501. The reversal of 2920840423 is 3240480292.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2920840423 - 2²⁵ = 2887285991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2920841423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1460420211 + 1460420212.

It is an arithmetic number, because the mean of its divisors is an integer number (1460420212).

Almost surely, 2^2920840423 is an apocalyptic number.

2920840423 is a deficient number, since it is larger than the sum of its proper divisors (1).

2920840423 is an equidigital number, since it uses as much as digits as its factorization.

2920840423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 2920840423 is about 54044.8001476553. The cubic root of 2920840423 is about 1429.4510131248.

The spelling of 2920840423 in words is "two billion, nine hundred twenty million, eight hundred forty thousand, four hundred twenty-three".