428458169 has 4 divisors (see below), whose sum is σ = 429836160. Its totient is φ = 427080180.

The previous prime is 428458141. The next prime is 428458183. The reversal of 428458169 is 961854824.

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 428458169 - 2¹² = 428454073 is a prime.

It is a super-2 number, since 2×428458169² = 367152805165665122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428458109) 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, 688529 + ... + 689150.

It is an arithmetic number, because the mean of its divisors is an integer number (107459040).

Almost surely, 2^428458169 is an apocalyptic number.

It is an amenable number.

428458169 is a deficient number, since it is larger than the sum of its proper divisors (1377991).

428458169 is a wasteful number, since it uses less digits than its factorization.

428458169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377990.

The product of its digits is 552960, while the sum is 47.

The square root of 428458169 is about 20699.2311209861. The cubic root of 428458169 is about 753.8810194612.

The spelling of 428458169 in words is "four hundred twenty-eight million, four hundred fifty-eight thousand, one hundred sixty-nine".