202443012 has 36 divisors (see below), whose sum is σ = 513745596. Its totient is φ = 67215360.

The previous prime is 202442971. The next prime is 202443019. The reversal of 202443012 is 210344202.

It can be written as a sum of positive squares in 2 ways, for example, as 97298496 + 105144516 = 9864^2 + 10254^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (202443019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1689 + ... + 20192.

It is an arithmetic number, because the mean of its divisors is an integer number (14270711).

Almost surely, 2^202443012 is an apocalyptic number.

It is an amenable number.

202443012 is an abundant number, since it is smaller than the sum of its proper divisors (311302584).

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

202443012 is a wasteful number, since it uses less digits than its factorization.

202443012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22148 (or 22143 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 202443012 is about 14228.2469756467. The cubic root of 202443012 is about 587.1750544694.

Adding to 202443012 its reverse (210344202), we get a palindrome (412787214).

The spelling of 202443012 in words is "two hundred two million, four hundred forty-three thousand, twelve".