200105440 has 48 divisors (see below), whose sum is σ = 473748912. Its totient is φ = 79873024.

The previous prime is 200105431. The next prime is 200105459. The reversal of 200105440 is 44501002.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97707 + ... + 99733.

It is an arithmetic number, because the mean of its divisors is an integer number (9869769).

Almost surely, 2^200105440 is an apocalyptic number.

200105440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200105440 is an abundant number, since it is smaller than the sum of its proper divisors (273643472).

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

200105440 is a wasteful number, since it uses less digits than its factorization.

200105440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2659 (or 2651 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 200105440 is about 14145.8629994780. The cubic root of 200105440 is about 584.9062990646.

Adding to 200105440 its reverse (44501002), we get a palindrome (244606442).

The spelling of 200105440 in words is "two hundred million, one hundred five thousand, four hundred forty".