20386134 has 16 divisors (see below), whose sum is σ = 45302640. Its totient is φ = 6795360.

The previous prime is 20386133. The next prime is 20386153. The reversal of 20386134 is 43168302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20386098 and 20386107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20386133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188707 + ... + 188814.

It is an arithmetic number, because the mean of its divisors is an integer number (2831415).

Almost surely, 2^20386134 is an apocalyptic number.

20386134 is an abundant number, since it is smaller than the sum of its proper divisors (24916506).

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

20386134 is a wasteful number, since it uses less digits than its factorization.

20386134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377532 (or 377526 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 20386134 is about 4515.1006633297. The cubic root of 20386134 is about 273.1775200926.

The spelling of 20386134 in words is "twenty million, three hundred eighty-six thousand, one hundred thirty-four".