20026149 has 16 divisors (see below), whose sum is σ = 31370304. Its totient is φ = 11203200.

The previous prime is 20026141. The next prime is 20026151. The reversal of 20026149 is 94162002.

It is not a de Polignac number, because 20026149 - 2³ = 20026141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20026141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22912 + ... + 23769.

It is an arithmetic number, because the mean of its divisors is an integer number (1960644).

Almost surely, 2^20026149 is an apocalyptic number.

It is an amenable number.

20026149 is a deficient number, since it is larger than the sum of its proper divisors (11344155).

20026149 is a wasteful number, since it uses less digits than its factorization.

20026149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46708.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 20026149 is about 4475.0585471030. The cubic root of 20026149 is about 271.5600089841.

The spelling of 20026149 in words is "twenty million, twenty-six thousand, one hundred forty-nine".