203422044040 has 32 divisors (see below), whose sum is σ = 461750048280. Its totient is φ = 80648737792.

The previous prime is 203422043983. The next prime is 203422044043. The reversal of 203422044040 is 40440224302.

It can be written as a sum of positive squares in 4 ways, for example, as 153424189636 + 49997854404 = 391694^2 + 223602^2 .

It is a junction number, because it is equal to n+sod(n) for n = 203422043996 and 203422044014.

It is not an unprimeable number, because it can be changed into a prime (203422044043) 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, 22497919 + ... + 22506958.

Almost surely, 2^203422044040 is an apocalyptic number.

203422044040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203422044040 is an abundant number, since it is smaller than the sum of its proper divisors (258328004240).

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

203422044040 is a wasteful number, since it uses less digits than its factorization.

203422044040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45005001 (or 45004997 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 25.

Adding to 203422044040 its reverse (40440224302), we get a palindrome (243862268342).

The spelling of 203422044040 in words is "two hundred three billion, four hundred twenty-two million, forty-four thousand, forty".