203240030 has 64 divisors (see below), whose sum is σ = 437833728. Its totient is φ = 66458880.

The previous prime is 203239997. The next prime is 203240041. The reversal of 203240030 is 30042302.

203240030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 203239987 and 203240014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157769 + ... + 159051.

It is an arithmetic number, because the mean of its divisors is an integer number (6841152).

Almost surely, 2^203240030 is an apocalyptic number.

203240030 is an abundant number, since it is smaller than the sum of its proper divisors (234593698).

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

203240030 is a wasteful number, since it uses less digits than its factorization.

203240030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401.

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

The square root of 203240030 is about 14256.2277619292. The cubic root of 203240030 is about 587.9446146947.

Adding to 203240030 its reverse (30042302), we get a palindrome (233282332).

The spelling of 203240030 in words is "two hundred three million, two hundred forty thousand, thirty".