428421102 has 8 divisors (see below), whose sum is σ = 856842216. Its totient is φ = 142807032.

The previous prime is 428421073. The next prime is 428421109. The reversal of 428421102 is 201124824.

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

428421102 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428421109) 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 3 ways as a sum of consecutive naturals, for example, 35701753 + ... + 35701764.

It is an arithmetic number, because the mean of its divisors is an integer number (107105277).

Almost surely, 2^428421102 is an apocalyptic number.

428421102 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.

428421102 is a wasteful number, since it uses less digits than its factorization.

428421102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71403522.

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 428421102 is about 20698.3357301982. The cubic root of 428421102 is about 753.8592787829.

Adding to 428421102 its reverse (201124824), we get a palindrome (629545926).

The spelling of 428421102 in words is "four hundred twenty-eight million, four hundred twenty-one thousand, one hundred two".