20220424 has 32 divisors (see below), whose sum is σ = 44827200. Its totient is φ = 8366400.

The previous prime is 20220407. The next prime is 20220451. The reversal of 20220424 is 42402202.

It is a junction number, because it is equal to n+sod(n) for n = 20220398 and 20220407.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4602 + ... + 7849.

It is an arithmetic number, because the mean of its divisors is an integer number (1400850).

Almost surely, 2^20220424 is an apocalyptic number.

It is an amenable number.

20220424 is an abundant number, since it is smaller than the sum of its proper divisors (24606776).

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

20220424 is a wasteful number, since it uses less digits than its factorization.

20220424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12493 (or 12489 counting only the distinct ones).

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

The square root of 20220424 is about 4496.7125769833. The cubic root of 20220424 is about 272.4353251109.

Adding to 20220424 its reverse (42402202), we get a palindrome (62622626).

The spelling of 20220424 in words is "twenty million, two hundred twenty thousand, four hundred twenty-four".