20269301 has 4 divisors (see below), whose sum is σ = 21828492. Its totient is φ = 18710112.

The previous prime is 20269283. The next prime is 20269307. The reversal of 20269301 is 10396202.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8702500 + 11566801 = 2950^2 + 3401^2 .

It is a cyclic number.

It is not a de Polignac number, because 20269301 - 2¹⁸ = 20007157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20269307) 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, 779576 + ... + 779601.

It is an arithmetic number, because the mean of its divisors is an integer number (5457123).

Almost surely, 2^20269301 is an apocalyptic number.

It is an amenable number.

20269301 is a deficient number, since it is larger than the sum of its proper divisors (1559191).

20269301 is a wasteful number, since it uses less digits than its factorization.

20269301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1559190.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 20269301 is about 4502.1440447858. The cubic root of 20269301 is about 272.6546595608.

The spelling of 20269301 in words is "twenty million, two hundred sixty-nine thousand, three hundred one".