2026640237 has 2 divisors, whose sum is σ = 2026640238. Its totient is φ = 2026640236.

The previous prime is 2026640233. The next prime is 2026640243. The reversal of 2026640237 is 7320466202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2016818281 + 9821956 = 44909^2 + 3134^2 .

It is a cyclic number.

It is not a de Polignac number, because 2026640237 - 2² = 2026640233 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2026640233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1013320118 + 1013320119.

It is an arithmetic number, because the mean of its divisors is an integer number (1013320119).

Almost surely, 2^2026640237 is an apocalyptic number.

It is an amenable number.

2026640237 is a deficient number, since it is larger than the sum of its proper divisors (1).

2026640237 is an equidigital number, since it uses as much as digits as its factorization.

2026640237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 2026640237 is about 45018.2211665454. The cubic root of 2026640237 is about 1265.4904932883.

The spelling of 2026640237 in words is "two billion, twenty-six million, six hundred forty thousand, two hundred thirty-seven".