20342112 has 48 divisors (see below), whose sum is σ = 61028352. Its totient is φ = 5811840.

The previous prime is 20342093. The next prime is 20342123. The reversal of 20342112 is 21124302.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 20342091 and 20342100.

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, 14464 + ... + 15807.

It is an arithmetic number, because the mean of its divisors is an integer number (1271424).

Almost surely, 2^20342112 is an apocalyptic number.

It is an amenable number.

20342112 is an abundant number, since it is smaller than the sum of its proper divisors (40686240).

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

20342112 is a wasteful number, since it uses less digits than its factorization.

20342112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30291 (or 30283 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 20342112 is about 4510.2230543511. The cubic root of 20342112 is about 272.9807443918.

Adding to 20342112 its reverse (21124302), we get a palindrome (41466414).

The spelling of 20342112 in words is "twenty million, three hundred forty-two thousand, one hundred twelve".