428886018 has 48 divisors (see below), whose sum is σ = 1041146496. Its totient is φ = 126450720.

The previous prime is 428886011. The next prime is 428886041. The reversal of 428886018 is 810688824.

It is a happy number.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (428886011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21946 + ... + 36597.

It is an arithmetic number, because the mean of its divisors is an integer number (21690552).

Almost surely, 2^428886018 is an apocalyptic number.

428886018 is an abundant number, since it is smaller than the sum of its proper divisors (612260478).

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

428886018 is a wasteful number, since it uses less digits than its factorization.

428886018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58599 (or 58596 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 45.

The square root of 428886018 is about 20709.5634430086. The cubic root of 428886018 is about 754.1318723723.

It can be divided in two parts, 428 and 886018, that added together give a triangular number (886446 = T₁₃₃₁).

The spelling of 428886018 in words is "four hundred twenty-eight million, eight hundred eighty-six thousand, eighteen".