20130342 has 8 divisors (see below), whose sum is σ = 40260696. Its totient is φ = 6710112.

The previous prime is 20130293. The next prime is 20130343. The reversal of 20130342 is 24303102.

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

20130342 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130343) by changing a digit.

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, 1677523 + ... + 1677534.

It is an arithmetic number, because the mean of its divisors is an integer number (5032587).

Almost surely, 2^20130342 is an apocalyptic number.

20130342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20130342 is a wasteful number, since it uses less digits than its factorization.

20130342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3355062.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 20130342 is about 4486.6849677685. The cubic root of 20130342 is about 272.0301563306.

Adding to 20130342 its reverse (24303102), we get a palindrome (44433444).

The spelling of 20130342 in words is "twenty million, one hundred thirty thousand, three hundred forty-two".