202124004 has 24 divisors (see below), whose sum is σ = 475799520. Its totient is φ = 66777984.

The previous prime is 202124003. The next prime is 202124057. The reversal of 202124004 is 400421202.

It is a super-2 number, since 2×202124004² = 81708225985984032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (202124003) by changing a digit.

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, 73174 + ... + 75885.

It is an arithmetic number, because the mean of its divisors is an integer number (19824980).

Almost surely, 2^202124004 is an apocalyptic number.

It is an amenable number.

202124004 is an abundant number, since it is smaller than the sum of its proper divisors (273675516).

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

202124004 is a wasteful number, since it uses less digits than its factorization.

202124004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149179 (or 149177 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 202124004 is about 14217.0321797483. The cubic root of 202124004 is about 586.8664704829.

Adding to 202124004 its reverse (400421202), we get a palindrome (602545206).

The spelling of 202124004 in words is "two hundred two million, one hundred twenty-four thousand, four".