20020344 has 16 divisors (see below), whose sum is σ = 50050920. Its totient is φ = 6673440.

The previous prime is 20020333. The next prime is 20020387. The reversal of 20020344 is 44302002.

It is a happy number.

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 3 ways as a sum of consecutive naturals, for example, 417067 + ... + 417114.

Almost surely, 2^20020344 is an apocalyptic number.

20020344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20020344 is an abundant number, since it is smaller than the sum of its proper divisors (30030576).

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

20020344 is a wasteful number, since it uses less digits than its factorization.

20020344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834190 (or 834186 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 20020344 is about 4474.4099052277. The cubic root of 20020344 is about 271.5337673238.

Adding to 20020344 its reverse (44302002), we get a palindrome (64322346).

The spelling of 20020344 in words is "twenty million, twenty thousand, three hundred forty-four".