20260743 has 4 divisors (see below), whose sum is σ = 27014328. Its totient is φ = 13507160.

The previous prime is 20260741. The next prime is 20260781. The reversal of 20260743 is 34706202.

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

It is a cyclic number.

It is not a de Polignac number, because 20260743 - 2¹ = 20260741 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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3376788 + ... + 3376793.

It is an arithmetic number, because the mean of its divisors is an integer number (6753582).

Almost surely, 2^20260743 is an apocalyptic number.

20260743 is a deficient number, since it is larger than the sum of its proper divisors (6753585).

20260743 is an equidigital number, since it uses as much as digits as its factorization.

20260743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6753584.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 20260743 is about 4501.1935083931. The cubic root of 20260743 is about 272.6162812098.

Adding to 20260743 its reverse (34706202), we get a palindrome (54966945).

The spelling of 20260743 in words is "twenty million, two hundred sixty thousand, seven hundred forty-three".