200172768 has 24 divisors (see below), whose sum is σ = 525453768. Its totient is φ = 66724224.

The previous prime is 200172767. The next prime is 200172779. The reversal of 200172768 is 867271002.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200172767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1042471 + ... + 1042662.

It is an arithmetic number, because the mean of its divisors is an integer number (21893907).

Almost surely, 2^200172768 is an apocalyptic number.

It is an amenable number.

200172768 is an abundant number, since it is smaller than the sum of its proper divisors (325281000).

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

200172768 is a wasteful number, since it uses less digits than its factorization.

200172768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2085146 (or 2085138 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 200172768 is about 14148.2425763768. The cubic root of 200172768 is about 584.9718914100.

The spelling of 200172768 in words is "two hundred million, one hundred seventy-two thousand, seven hundred sixty-eight".