20030164 has 24 divisors (see below), whose sum is σ = 43702848. Its totient is φ = 7803840.

The previous prime is 20030159. The next prime is 20030173. The reversal of 20030164 is 46103002.

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 7 ways as a sum of consecutive naturals, for example, 32209 + ... + 32824.

It is an arithmetic number, because the mean of its divisors is an integer number (1820952).

Almost surely, 2^20030164 is an apocalyptic number.

It is an amenable number.

20030164 is an abundant number, since it is smaller than the sum of its proper divisors (23672684).

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

20030164 is a wasteful number, since it uses less digits than its factorization.

20030164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65055 (or 65053 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 20030164 is about 4475.5071221036. The cubic root of 20030164 is about 271.5781559342.

Adding to 20030164 its reverse (46103002), we get a palindrome (66133166).

The spelling of 20030164 in words is "twenty million, thirty thousand, one hundred sixty-four".