20426211 has 12 divisors (see below), whose sum is σ = 31774288. Its totient is φ = 12569904.

The previous prime is 20426209. The next prime is 20426233. The reversal of 20426211 is 11262402.

20426211 is a `hidden beast` number, since 2 + 0 + 42 + 621 + 1 = 666.

It is not a de Polignac number, because 20426211 - 2¹ = 20426209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20426201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87175 + ... + 87408.

Almost surely, 2^20426211 is an apocalyptic number.

20426211 is a deficient number, since it is larger than the sum of its proper divisors (11348077).

20426211 is a wasteful number, since it uses less digits than its factorization.

20426211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174602 (or 174599 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 20426211 is about 4519.5365912890. The cubic root of 20426211 is about 273.3564156923.

Adding to 20426211 its reverse (11262402), we get a palindrome (31688613).

The spelling of 20426211 in words is "twenty million, four hundred twenty-six thousand, two hundred eleven".