428800073 has 8 divisors (see below), whose sum is σ = 465311616. Its totient is φ = 392792400.

The previous prime is 428800069. The next prime is 428800093. The reversal of 428800073 is 370008824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 428800073 - 2² = 428800069 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428800013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124193 + ... + 127598.

It is an arithmetic number, because the mean of its divisors is an integer number (58163952).

Almost surely, 2^428800073 is an apocalyptic number.

It is an amenable number.

428800073 is a deficient number, since it is larger than the sum of its proper divisors (36511543).

428800073 is a wasteful number, since it uses less digits than its factorization.

428800073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251935.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 428800073 is about 20707.4883315191. The cubic root of 428800073 is about 754.0814952006.

Adding to 428800073 its reverse (370008824), we get a palindrome (798808897).

The spelling of 428800073 in words is "four hundred twenty-eight million, eight hundred thousand, seventy-three".