42224042020 has 12 divisors (see below), whose sum is σ = 88670488284. Its totient is φ = 16889616800.

The previous prime is 42224042017. The next prime is 42224042023. The reversal of 42224042020 is 2024042224.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42224042017) and next prime (42224042023).

It can be written as a sum of positive squares in 2 ways, for example, as 19494861376 + 22729180644 = 139624^2 + 150762^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42224041982 and 42224042000.

It is not an unprimeable number, because it can be changed into a prime (42224042023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1055601031 + ... + 1055601070.

It is an arithmetic number, because the mean of its divisors is an integer number (7389207357).

Almost surely, 2^42224042020 is an apocalyptic number.

It is an amenable number.

42224042020 is an abundant number, since it is smaller than the sum of its proper divisors (46446446264).

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

42224042020 is a wasteful number, since it uses less digits than its factorization.

42224042020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111202110 (or 2111202108 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 42224042020 its reverse (2024042224), we get a palindrome (44248084244).

The spelling of 42224042020 in words is "forty-two billion, two hundred twenty-four million, forty-two thousand, twenty".