20386044 has 36 divisors (see below), whose sum is σ = 58893744. Its totient is φ = 5824512.

The previous prime is 20386039. The next prime is 20386049. The reversal of 20386044 is 44068302.

20386044 is a `hidden beast` number, since 20 + 38 + 604 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (20386039) and next prime (20386049).

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 20385999 and 20386017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20386049) 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 11 ways as a sum of consecutive naturals, for example, 40197 + ... + 40700.

Almost surely, 2^20386044 is an apocalyptic number.

It is an amenable number.

20386044 is an abundant number, since it is smaller than the sum of its proper divisors (38507700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20386044 is a wasteful number, since it uses less digits than its factorization.

20386044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80914 (or 80909 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 20386044 is about 4515.0906967635. The cubic root of 20386044 is about 273.1771180871.

The spelling of 20386044 in words is "twenty million, three hundred eighty-six thousand, forty-four".