200421150 has 24 divisors (see below), whose sum is σ = 497044824. Its totient is φ = 53445600.

The previous prime is 200421131. The next prime is 200421157. The reversal of 200421150 is 51124002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200421157) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 667921 + ... + 668220.

It is an arithmetic number, because the mean of its divisors is an integer number (20710201).

Almost surely, 2^200421150 is an apocalyptic number.

200421150 is an abundant number, since it is smaller than the sum of its proper divisors (296623674).

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

200421150 is a wasteful number, since it uses less digits than its factorization.

200421150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336156 (or 1336151 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 200421150 is about 14157.0176944157. The cubic root of 200421150 is about 585.2137432109.

Adding to 200421150 its reverse (51124002), we get a palindrome (251545152).

The spelling of 200421150 in words is "two hundred million, four hundred twenty-one thousand, one hundred fifty".