202313240 has 16 divisors (see below), whose sum is σ = 455204880. Its totient is φ = 80925280.

The previous prime is 202313219. The next prime is 202313257. The reversal of 202313240 is 42313202.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2528876 + ... + 2528955.

It is an arithmetic number, because the mean of its divisors is an integer number (28450305).

Almost surely, 2^202313240 is an apocalyptic number.

202313240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202313240 is an abundant number, since it is smaller than the sum of its proper divisors (252891640).

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

202313240 is a wasteful number, since it uses less digits than its factorization.

202313240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5057842 (or 5057838 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 202313240 is about 14223.6858795461. The cubic root of 202313240 is about 587.0495620850.

Adding to 202313240 its reverse (42313202), we get a palindrome (244626442).

The spelling of 202313240 in words is "two hundred two million, three hundred thirteen thousand, two hundred forty".