200040440 has 32 divisors (see below), whose sum is σ = 456263280. Its totient is φ = 78918912.

The previous prime is 200040433. The next prime is 200040443. The reversal of 200040440 is 44040002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200040443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31334 + ... + 37173.

Almost surely, 2^200040440 is an apocalyptic number.

200040440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200040440 is an abundant number, since it is smaller than the sum of its proper divisors (256222840).

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

200040440 is a wasteful number, since it uses less digits than its factorization.

200040440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68591 (or 68587 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 200040440 is about 14143.5653213749. The cubic root of 200040440 is about 584.8429607454.

Adding to 200040440 its reverse (44040002), we get a palindrome (244080442).

The spelling of 200040440 in words is "two hundred million, forty thousand, four hundred forty".