20042344 has 32 divisors (see below), whose sum is σ = 43096320. Its totient is φ = 8559936.

The previous prime is 20042327. The next prime is 20042353. The reversal of 20042344 is 44324002.

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, 25542 + ... + 26314.

It is an arithmetic number, because the mean of its divisors is an integer number (1346760).

Almost surely, 2^20042344 is an apocalyptic number.

It is an amenable number.

20042344 is an abundant number, since it is smaller than the sum of its proper divisors (23053976).

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

20042344 is a wasteful number, since it uses less digits than its factorization.

20042344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249 (or 1245 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 20042344 is about 4476.8676549570. The cubic root of 20042344 is about 271.6331921234.

Adding to 20042344 its reverse (44324002), we get a palindrome (64366346).

The spelling of 20042344 in words is "twenty million, forty-two thousand, three hundred forty-four".