428022001 has 8 divisors (see below), whose sum is σ = 478322208. Its totient is φ = 379620000.

The previous prime is 428021999. The next prime is 428022037. The reversal of 428022001 is 100220824.

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

It is a cyclic number.

It is not a de Polignac number, because 428022001 - 2¹ = 428021999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 428022001.

It is not an unprimeable number, because it can be changed into a prime (428022041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474075 + ... + 474976.

It is an arithmetic number, because the mean of its divisors is an integer number (59790276).

Almost surely, 2^428022001 is an apocalyptic number.

428022001 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

428022001 is a deficient number, since it is larger than the sum of its proper divisors (50300207).

428022001 is a wasteful number, since it uses less digits than its factorization.

428022001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949103.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 428022001 is about 20688.6925879815. The cubic root of 428022001 is about 753.6251170635.

Adding to 428022001 its reverse (100220824), we get a palindrome (528242825).

The spelling of 428022001 in words is "four hundred twenty-eight million, twenty-two thousand, one".