200243122423440 has 40 divisors (see below), whose sum is σ = 620753679513408. Its totient is φ = 53398165979520.

The previous prime is 200243122423423. The next prime is 200243122423459. The reversal of 200243122423440 is 44324221342002.

It is a happy number.

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

It is a super-2 number, since 2×200243122423440² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417173171476 + ... + 417173171955.

Almost surely, 2^{200243122423440} is an apocalyptic number.

200243122423440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200243122423440 is an abundant number, since it is smaller than the sum of its proper divisors (420510557089968).

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

200243122423440 is a wasteful number, since it uses less digits than its factorization.

200243122423440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834346343447 (or 834346343441 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 200243122423440 its reverse (44324221342002), we get a palindrome (244567343765442).

The spelling of 200243122423440 in words is "two hundred trillion, two hundred forty-three billion, one hundred twenty-two million, four hundred twenty-three thousand, four hundred forty".