200445729 has 16 divisors (see below), whose sum is σ = 291794880. Its totient is φ = 121383360.

The previous prime is 200445719. The next prime is 200445733. The reversal of 200445729 is 927544002.

It is a de Polignac number, because none of the positive numbers 2^k-200445729 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 200445729.

It is not an unprimeable number, because it can be changed into a prime (200445719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73539 + ... + 76215.

It is an arithmetic number, because the mean of its divisors is an integer number (18237180).

Almost surely, 2^200445729 is an apocalyptic number.

It is an amenable number.

200445729 is a deficient number, since it is larger than the sum of its proper divisors (91349151).

200445729 is a wasteful number, since it uses less digits than its factorization.

200445729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4960.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 200445729 is about 14157.8857531766. The cubic root of 200445729 is about 585.2376651383.

The spelling of 200445729 in words is "two hundred million, four hundred forty-five thousand, seven hundred twenty-nine".