20202424 has 32 divisors (see below), whose sum is σ = 41750640. Its totient is φ = 9088000.

The previous prime is 20202419. The next prime is 20202437. The reversal of 20202424 is 42420202.

It is a junction number, because it is equal to n+sod(n) for n = 20202398 and 20202407.

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, 7752 + ... + 10024.

Almost surely, 2^20202424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20202424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20875320).

20202424 is an abundant number, since it is smaller than the sum of its proper divisors (21548216).

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

20202424 is a wasteful number, since it uses less digits than its factorization.

20202424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2391 (or 2387 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 20202424 is about 4494.7106692200. The cubic root of 20202424 is about 272.3544614639.

Adding to 20202424 its reverse (42420202), we get a palindrome (62622626).

It can be divided in two parts, 2020 and 2424, that added together give a palindrome (4444).

The spelling of 20202424 in words is "twenty million, two hundred two thousand, four hundred twenty-four".