2026566394 has 4 divisors (see below), whose sum is σ = 3039849594. Its totient is φ = 1013283196.

The previous prime is 2026566361. The next prime is 2026566407. The reversal of 2026566394 is 4936656202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1860800769 + 165765625 = 43137^2 + 12875^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2026566394.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506641597 + ... + 506641600.

Almost surely, 2^2026566394 is an apocalyptic number.

2026566394 is a deficient number, since it is larger than the sum of its proper divisors (1013283200).

2026566394 is a wasteful number, since it uses less digits than its factorization.

2026566394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013283199.

The product of its (nonzero) digits is 466560, while the sum is 43.

The square root of 2026566394 is about 45017.4010133859. The cubic root of 2026566394 is about 1265.4751232278.

The spelling of 2026566394 in words is "two billion, twenty-six million, five hundred sixty-six thousand, three hundred ninety-four".