428544001 has 4 divisors (see below), whose sum is σ = 434579904. Its totient is φ = 422508100.

The previous prime is 428543923. The next prime is 428544019. The reversal of 428544001 is 100445824.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 428544001 - 2⁷ = 428543873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428544071) 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, 3017845 + ... + 3017986.

It is an arithmetic number, because the mean of its divisors is an integer number (108644976).

Almost surely, 2^428544001 is an apocalyptic number.

It is an amenable number.

428544001 is a deficient number, since it is larger than the sum of its proper divisors (6035903).

428544001 is an equidigital number, since it uses as much as digits as its factorization.

428544001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6035902.

The product of its (nonzero) digits is 5120, while the sum is 28.

The square root of 428544001 is about 20701.3043308870. The cubic root of 428544001 is about 753.9313571604.

Adding to 428544001 its reverse (100445824), we get a palindrome (528989825).

The spelling of 428544001 in words is "four hundred twenty-eight million, five hundred forty-four thousand, one".