20600049 has 4 divisors (see below), whose sum is σ = 27466736. Its totient is φ = 13733364.

The previous prime is 20600003. The next prime is 20600051. The reversal of 20600049 is 94000602.

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 20600049 - 2⁷ = 20599921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20599998 and 20600034.

It is not an unprimeable number, because it can be changed into a prime (20600149) 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, 3433339 + ... + 3433344.

It is an arithmetic number, because the mean of its divisors is an integer number (6866684).

Almost surely, 2^20600049 is an apocalyptic number.

It is an amenable number.

20600049 is a deficient number, since it is larger than the sum of its proper divisors (6866687).

20600049 is an equidigital number, since it uses as much as digits as its factorization.

20600049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6866686.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 20600049 is about 4538.7276851558. The cubic root of 20600049 is about 274.1296960010.

The spelling of 20600049 in words is "twenty million, six hundred thousand, forty-nine".