20386004 has 12 divisors (see below), whose sum is σ = 37226784. Its totient is φ = 9749784.

The previous prime is 20385997. The next prime is 20386013. The reversal of 20386004 is 40068302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 110702 + ... + 110885.

It is an arithmetic number, because the mean of its divisors is an integer number (3102232).

Almost surely, 2^20386004 is an apocalyptic number.

It is an amenable number.

20386004 is a deficient number, since it is larger than the sum of its proper divisors (16840780).

20386004 is a wasteful number, since it uses less digits than its factorization.

20386004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221614 (or 221612 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 20386004 is about 4515.0862671714. The cubic root of 20386004 is about 273.1769394176.

The spelling of 20386004 in words is "twenty million, three hundred eighty-six thousand, four".