203424540 has 48 divisors (see below), whose sum is σ = 621371520. Its totient is φ = 49314880.

The previous prime is 203424527. The next prime is 203424553. The reversal of 203424540 is 45424302.

It is an interprime number because it is at equal distance from previous prime (203424527) and next prime (203424553).

It is a self number, because there is not a number n which added to its sum of digits gives 203424540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153450 + ... + 154769.

It is an arithmetic number, because the mean of its divisors is an integer number (12945240).

Almost surely, 2^203424540 is an apocalyptic number.

203424540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203424540 is an abundant number, since it is smaller than the sum of its proper divisors (417946980).

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

203424540 is a wasteful number, since it uses less digits than its factorization.

203424540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308242 (or 308240 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 203424540 is about 14262.6975008236. The cubic root of 203424540 is about 588.1224813110.

Adding to 203424540 its reverse (45424302), we get a palindrome (248848842).

The spelling of 203424540 in words is "two hundred three million, four hundred twenty-four thousand, five hundred forty".