2026478239 has 2 divisors, whose sum is σ = 2026478240. Its totient is φ = 2026478238.

The previous prime is 2026478219. The next prime is 2026478263. The reversal of 2026478239 is 9328746202.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2026478239 is a prime.

It is a super-2 number, since 2×2026478239² = 8213228106281082242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2026478195 and 2026478204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2026478219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1013239119 + 1013239120.

It is an arithmetic number, because the mean of its divisors is an integer number (1013239120).

Almost surely, 2^2026478239 is an apocalyptic number.

2026478239 is a deficient number, since it is larger than the sum of its proper divisors (1).

2026478239 is an equidigital number, since it uses as much as digits as its factorization.

2026478239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 2026478239 is about 45016.4218813535. The cubic root of 2026478239 is about 1265.4567737053.

The spelling of 2026478239 in words is "two billion, twenty-six million, four hundred seventy-eight thousand, two hundred thirty-nine".