20467201 has 4 divisors (see below), whose sum is σ = 21671172. Its totient is φ = 19263232.

The previous prime is 20467189. The next prime is 20467247. The reversal of 20467201 is 10276402.

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 15840400 + 4626801 = 3980^2 + 2151^2 .

It is a cyclic number.

It is not a de Polignac number, because 20467201 - 2⁹ = 20466689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20467501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601960 + ... + 601993.

It is an arithmetic number, because the mean of its divisors is an integer number (5417793).

Almost surely, 2^20467201 is an apocalyptic number.

It is an amenable number.

20467201 is a deficient number, since it is larger than the sum of its proper divisors (1203971).

20467201 is a wasteful number, since it uses less digits than its factorization.

20467201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203970.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 20467201 is about 4524.0690755116. The cubic root of 20467201 is about 273.5391448460.

The spelling of 20467201 in words is "twenty million, four hundred sixty-seven thousand, two hundred one".