203030240 has 48 divisors (see below), whose sum is σ = 548184672. Its totient is φ = 69609984.

The previous prime is 203030239. The next prime is 203030249. The reversal of 203030240 is 42030302.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203030249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89519 + ... + 91758.

It is an arithmetic number, because the mean of its divisors is an integer number (11420514).

Almost surely, 2^203030240 is an apocalyptic number.

203030240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203030240 is an abundant number, since it is smaller than the sum of its proper divisors (345154432).

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

203030240 is a wasteful number, since it uses less digits than its factorization.

203030240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181299 (or 181291 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 203030240 is about 14248.8680252152. The cubic root of 203030240 is about 587.7422474657.

Adding to 203030240 its reverse (42030302), we get a palindrome (245060542).

The spelling of 203030240 in words is "two hundred three million, thirty thousand, two hundred forty".