203010340 has 24 divisors (see below), whose sum is σ = 459116280. Its totient is φ = 74957568.

The previous prime is 203010323. The next prime is 203010341. The reversal of 203010340 is 43010302.

It can be written as a sum of positive squares in 4 ways, for example, as 16305444 + 186704896 = 4038^2 + 13664^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 203010340.

It is not an unprimeable number, because it can be changed into a prime (203010341) 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, 390145 + ... + 390664.

It is an arithmetic number, because the mean of its divisors is an integer number (19129845).

Almost surely, 2^203010340 is an apocalyptic number.

203010340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203010340 is an abundant number, since it is smaller than the sum of its proper divisors (256105940).

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

203010340 is a wasteful number, since it uses less digits than its factorization.

203010340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780831 (or 780829 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 203010340 is about 14248.1697070185. The cubic root of 203010340 is about 587.7230443282.

Adding to 203010340 its reverse (43010302), we get a palindrome (246020642).

The spelling of 203010340 in words is "two hundred three million, ten thousand, three hundred forty".