428042267 has 4 divisors (see below), whose sum is σ = 430877136. Its totient is φ = 425207400.

The previous prime is 428042261. The next prime is 428042273. The reversal of 428042267 is 762240824.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (428042261) and next prime (428042273).

It is a cyclic number.

It is not a de Polignac number, because 428042267 - 2²⁰ = 426993691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428042261) 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 3 ways as a sum of consecutive naturals, for example, 1417208 + ... + 1417509.

It is an arithmetic number, because the mean of its divisors is an integer number (107719284).

Almost surely, 2^428042267 is an apocalyptic number.

428042267 is a deficient number, since it is larger than the sum of its proper divisors (2834869).

428042267 is a wasteful number, since it uses less digits than its factorization.

428042267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2834868.

The product of its (nonzero) digits is 43008, while the sum is 35.

The square root of 428042267 is about 20689.1823666379. The cubic root of 428042267 is about 753.6370110982.

The spelling of 428042267 in words is "four hundred twenty-eight million, forty-two thousand, two hundred sixty-seven".