428026218 has 8 divisors (see below), whose sum is σ = 856052448. Its totient is φ = 142675404.

The previous prime is 428026213. The next prime is 428026219. The reversal of 428026218 is 812620824.

It is a happy number.

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

428026218 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (428026211) 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, 35668846 + ... + 35668857.

It is an arithmetic number, because the mean of its divisors is an integer number (107006556).

Almost surely, 2^428026218 is an apocalyptic number.

428026218 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428026218 is a wasteful number, since it uses less digits than its factorization.

428026218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71337708.

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 428026218 is about 20688.7945033054. The cubic root of 428026218 is about 753.6275920350.

The spelling of 428026218 in words is "four hundred twenty-eight million, twenty-six thousand, two hundred eighteen".