20385102 has 16 divisors (see below), whose sum is σ = 41439312. Its totient is φ = 6683520.

The previous prime is 20385083. The next prime is 20385121. The reversal of 20385102 is 20158302.

20385102 is nontrivially palindromic in base 7.

It is an interprime number because it is at equal distance from previous prime (20385083) and next prime (20385121).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 27483 + ... + 28214.

It is an arithmetic number, because the mean of its divisors is an integer number (2589957).

Almost surely, 2^20385102 is an apocalyptic number.

20385102 is an abundant number, since it is smaller than the sum of its proper divisors (21054210).

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

20385102 is a wasteful number, since it uses less digits than its factorization.

20385102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55763.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 20385102 is about 4514.9863787170. The cubic root of 20385102 is about 273.1729103587.

It can be divided in two parts, 2038 and 5102, that added together give a triangular number (7140 = T₁₁₉).

The spelling of 20385102 in words is "twenty million, three hundred eighty-five thousand, one hundred two".