2042640343 has 2 divisors, whose sum is σ = 2042640344. Its totient is φ = 2042640342.

The previous prime is 2042640337. The next prime is 2042640349. The reversal of 2042640343 is 3430462402.

It is a balanced prime because it is at equal distance from previous prime (2042640337) and next prime (2042640349).

It is a cyclic number.

It is not a de Polignac number, because 2042640343 - 2⁵ = 2042640311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2042640349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021320171 + 1021320172.

It is an arithmetic number, because the mean of its divisors is an integer number (1021320172).

Almost surely, 2^2042640343 is an apocalyptic number.

2042640343 is a deficient number, since it is larger than the sum of its proper divisors (1).

2042640343 is an equidigital number, since it uses as much as digits as its factorization.

2042640343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 28.

The square root of 2042640343 is about 45195.5787992587. The cubic root of 2042640343 is about 1268.8120710312.

The spelling of 2042640343 in words is "two billion, forty-two million, six hundred forty thousand, three hundred forty-three".