202030240 has 48 divisors (see below), whose sum is σ = 493766280. Its totient is φ = 78023680.

The previous prime is 202030207. The next prime is 202030243. The reversal of 202030240 is 42030202.

It can be written as a sum of positive squares in 4 ways, for example, as 122677776 + 79352464 = 11076^2 + 8908^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 202030240.

It is not an unprimeable number, because it can be changed into a prime (202030243) 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, 17131 + ... + 26410.

Almost surely, 2^202030240 is an apocalyptic number.

202030240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202030240 is an abundant number, since it is smaller than the sum of its proper divisors (291736040).

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

202030240 is a wasteful number, since it uses less digits than its factorization.

202030240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43585 (or 43577 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 202030240 is about 14213.7342032275. The cubic root of 202030240 is about 586.7757086112.

Adding to 202030240 its reverse (42030202), we get a palindrome (244060442).

The spelling of 202030240 in words is "two hundred two million, thirty thousand, two hundred forty".