2045802439 has 2 divisors, whose sum is σ = 2045802440. Its totient is φ = 2045802438.

The previous prime is 2045802401. The next prime is 2045802463. The reversal of 2045802439 is 9342085402.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2045802439 - 2¹⁷ = 2045671367 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2045802398 and 2045802407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2045802739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022901219 + 1022901220.

It is an arithmetic number, because the mean of its divisors is an integer number (1022901220).

Almost surely, 2^2045802439 is an apocalyptic number.

2045802439 is a deficient number, since it is larger than the sum of its proper divisors (1).

2045802439 is an equidigital number, since it uses as much as digits as its factorization.

2045802439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 2045802439 is about 45230.5476309982. The cubic root of 2045802439 is about 1269.4664588782.

The spelling of 2045802439 in words is "two billion, forty-five million, eight hundred two thousand, four hundred thirty-nine".