20388014 has 8 divisors (see below), whose sum is σ = 30862920. Its totient is φ = 10100376.

The previous prime is 20388013. The next prime is 20388019. The reversal of 20388014 is 41088302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20388014² = 831342229728392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20388013) 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 3 ways as a sum of consecutive naturals, for example, 46544 + ... + 46979.

It is an arithmetic number, because the mean of its divisors is an integer number (3857865).

Almost surely, 2^20388014 is an apocalyptic number.

20388014 is a deficient number, since it is larger than the sum of its proper divisors (10474906).

20388014 is a wasteful number, since it uses less digits than its factorization.

20388014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93634.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 20388014 is about 4515.3088487943. The cubic root of 20388014 is about 273.1859172700.

The spelling of 20388014 in words is "twenty million, three hundred eighty-eight thousand, fourteen".