20031342 has 8 divisors (see below), whose sum is σ = 40062696. Its totient is φ = 6677112.

The previous prime is 20031331. The next prime is 20031343. The reversal of 20031342 is 24313002.

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

20031342 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20031343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1669273 + ... + 1669284.

It is an arithmetic number, because the mean of its divisors is an integer number (5007837).

Almost surely, 2^20031342 is an apocalyptic number.

20031342 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.

20031342 is a wasteful number, since it uses less digits than its factorization.

20031342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3338562.

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

The square root of 20031342 is about 4475.6387253665. The cubic root of 20031342 is about 271.5834797847.

Adding to 20031342 its reverse (24313002), we get a palindrome (44344344).

The spelling of 20031342 in words is "twenty million, thirty-one thousand, three hundred forty-two".