203920064 has 28 divisors (see below), whose sum is σ = 407353008. Its totient is φ = 101280000.

The previous prime is 203920043. The next prime is 203920069. The reversal of 203920064 is 460029302.

It is not an unprimeable number, because it can be changed into a prime (203920069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 887 + ... + 20214.

Almost surely, 2^203920064 is an apocalyptic number.

It is an amenable number.

203920064 is a deficient number, since it is larger than the sum of its proper divisors (203432944).

203920064 is a wasteful number, since it uses less digits than its factorization.

203920064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21264 (or 21254 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 203920064 is about 14280.0582631865. The cubic root of 203920064 is about 588.5996320236.

Adding to 203920064 its reverse (460029302), we get a palindrome (663949366).

The spelling of 203920064 in words is "two hundred three million, nine hundred twenty thousand, sixty-four".