20046261 has 4 divisors (see below), whose sum is σ = 26728352. Its totient is φ = 13364172.

The previous prime is 20046233. The next prime is 20046263. The reversal of 20046261 is 16264002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20046261 - 2¹⁰ = 20045237 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 (20046263) 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, 3341041 + ... + 3341046.

It is an arithmetic number, because the mean of its divisors is an integer number (6682088).

Almost surely, 2^20046261 is an apocalyptic number.

It is an amenable number.

20046261 is a deficient number, since it is larger than the sum of its proper divisors (6682091).

20046261 is an equidigital number, since it uses as much as digits as its factorization.

20046261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6682090.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 20046261 is about 4477.3051046360. The cubic root of 20046261 is about 271.6508866257.

The spelling of 20046261 in words is "twenty million, forty-six thousand, two hundred sixty-one".