203342404240 has 40 divisors (see below), whose sum is σ = 472795777080. Its totient is φ = 81332714496.

The previous prime is 203342404201. The next prime is 203342404241. The reversal of 203342404240 is 42404243302.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5790601216 + 197551803024 = 76096^2 + 444468^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 203342404199 and 203342404208.

It is not an unprimeable number, because it can be changed into a prime (203342404241) 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, 1801962 + ... + 1911478.

It is an arithmetic number, because the mean of its divisors is an integer number (11819894427).

Almost surely, 2^203342404240 is an apocalyptic number.

203342404240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203342404240 is an abundant number, since it is smaller than the sum of its proper divisors (269453372840).

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

203342404240 is a wasteful number, since it uses less digits than its factorization.

203342404240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132739 (or 132733 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 203342404240 its reverse (42404243302), we get a palindrome (245746647542).

The spelling of 203342404240 in words is "two hundred three billion, three hundred forty-two million, four hundred four thousand, two hundred forty".