202142143424 has 56 divisors (see below), whose sum is σ = 445916596608. Its totient is φ = 90286801920.

The previous prime is 202142143403. The next prime is 202142143493. The reversal of 202142143424 is 424341241202.

It is a happy number.

It is a super-2 number, since 2×202142143424² (a number of 23 digits) contains 22 as substring.

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, 3892907 + ... + 3944490.

It is an arithmetic number, because the mean of its divisors is an integer number (7962796368).

Almost surely, 2^202142143424 is an apocalyptic number.

It is an amenable number.

202142143424 is an abundant number, since it is smaller than the sum of its proper divisors (243774453184).

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

202142143424 is a wasteful number, since it uses less digits than its factorization.

202142143424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7837453 (or 7837443 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 202142143424 its reverse (424341241202), we get a palindrome (626483384626).

The spelling of 202142143424 in words is "two hundred two billion, one hundred forty-two million, one hundred forty-three thousand, four hundred twenty-four".