202240144 has 10 divisors (see below), whose sum is σ = 391840310. Its totient is φ = 101120064.

The previous prime is 202240091. The next prime is 202240147. The reversal of 202240144 is 441042202.

It can be written as a sum of positive squares in only one way, i.e., 192876544 + 9363600 = 13888^2 + 3060^2 .

It is not an unprimeable number, because it can be changed into a prime (202240147) 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 as a sum of consecutive naturals, namely, 6319989 + ... + 6320020.

It is an arithmetic number, because the mean of its divisors is an integer number (39184031).

Almost surely, 2^202240144 is an apocalyptic number.

It is an amenable number.

202240144 is a deficient number, since it is larger than the sum of its proper divisors (189600166).

202240144 is a wasteful number, since it uses less digits than its factorization.

202240144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12640017 (or 12640011 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 202240144 is about 14221.1161305996. The cubic root of 202240144 is about 586.9788530140.

Adding to 202240144 its reverse (441042202), we get a palindrome (643282346).

The spelling of 202240144 in words is "two hundred two million, two hundred forty thousand, one hundred forty-four".