428043995 has 8 divisors (see below), whose sum is σ = 514255920. Its totient is φ = 342033120.

The previous prime is 428043991. The next prime is 428044021. The reversal of 428043995 is 599340824.

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

It is not a de Polignac number, because 428043995 - 2² = 428043991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428043991) 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 7 ways as a sum of consecutive naturals, for example, 45536 + ... + 54125.

It is an arithmetic number, because the mean of its divisors is an integer number (64281990).

Almost surely, 2^428043995 is an apocalyptic number.

428043995 is a deficient number, since it is larger than the sum of its proper divisors (86211925).

428043995 is an equidigital number, since it uses as much as digits as its factorization.

428043995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100525.

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 428043995 is about 20689.2241275501. The cubic root of 428043995 is about 753.6380252372.

The spelling of 428043995 in words is "four hundred twenty-eight million, forty-three thousand, nine hundred ninety-five".