20260791 has 6 divisors (see below), whose sum is σ = 29265600. Its totient is φ = 13507188.

The previous prime is 20260789. The next prime is 20260813. The reversal of 20260791 is 19706202.

It is not a de Polignac number, because 20260791 - 2¹ = 20260789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20260741) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1125591 + ... + 1125608.

It is an arithmetic number, because the mean of its divisors is an integer number (4877600).

Almost surely, 2^20260791 is an apocalyptic number.

20260791 is a deficient number, since it is larger than the sum of its proper divisors (9004809).

20260791 is a wasteful number, since it uses less digits than its factorization.

20260791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2251205 (or 2251202 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 20260791 is about 4501.1988403091. The cubic root of 20260791 is about 272.6164964959.

Adding to 20260791 its reverse (19706202), we get a palindrome (39966993).

The spelling of 20260791 in words is "twenty million, two hundred sixty thousand, seven hundred ninety-one".