202017444428 has 24 divisors (see below), whose sum is σ = 374387396544. Its totient is φ = 95051552000.

The previous prime is 202017444407. The next prime is 202017444437. The reversal of 202017444428 is 824444710202.

It is a happy number.

It is a super-2 number, since 2×202017444428² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202017444391 and 202017444400.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 184253 + ... + 661803.

It is an arithmetic number, because the mean of its divisors is an integer number (15599474856).

Almost surely, 2^202017444428 is an apocalyptic number.

It is an amenable number.

202017444428 is a deficient number, since it is larger than the sum of its proper divisors (172369952116).

202017444428 is a wasteful number, since it uses less digits than its factorization.

202017444428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483793 (or 483791 counting only the distinct ones).

The product of its (nonzero) digits is 114688, while the sum is 38.

It can be divided in two parts, 2020174 and 44428, that added together give a palindrome (2064602).

The spelling of 202017444428 in words is "two hundred two billion, seventeen million, four hundred forty-four thousand, four hundred twenty-eight".