428840167 has 8 divisors (see below), whose sum is σ = 496008576. Its totient is φ = 363148152.

The previous prime is 428840149. The next prime is 428840183. The reversal of 428840167 is 761048824.

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 428840167 - 2⁷ = 428840039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428840567) 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, 368473 + ... + 369634.

It is an arithmetic number, because the mean of its divisors is an integer number (62001072).

Almost surely, 2^428840167 is an apocalyptic number.

428840167 is a deficient number, since it is larger than the sum of its proper divisors (67168409).

428840167 is an equidigital number, since it uses as much as digits as its factorization.

428840167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738197.

The product of its (nonzero) digits is 86016, while the sum is 40.

The square root of 428840167 is about 20708.4564127798. The cubic root of 428840167 is about 754.1049973742.

The spelling of 428840167 in words is "four hundred twenty-eight million, eight hundred forty thousand, one hundred sixty-seven".