202042424020 has 24 divisors (see below), whose sum is σ = 424304030304. Its totient is φ = 80814123936.

The previous prime is 202042423997. The next prime is 202042424053. The reversal of 202042424020 is 20424240202.

It is a happy number.

It is a super-2 number, since 2×202042424020² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202042423982 and 202042424000.

It is a congruent number.

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, 460167 + ... + 784753.

It is an arithmetic number, because the mean of its divisors is an integer number (17679334596).

Almost surely, 2^202042424020 is an apocalyptic number.

202042424020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202042424020 is an abundant number, since it is smaller than the sum of its proper divisors (222261606284).

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

202042424020 is a wasteful number, since it uses less digits than its factorization.

202042424020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355719 (or 355717 counting only the distinct ones).

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

Adding to 202042424020 its reverse (20424240202), we get a palindrome (222466664222).

The spelling of 202042424020 in words is "two hundred two billion, forty-two million, four hundred twenty-four thousand, twenty".