428034222 has 48 divisors (see below), whose sum is σ = 1156252032. Its totient is φ = 111177360.

The previous prime is 428034199. The next prime is 428034227. The reversal of 428034222 is 222430824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428034227) 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 23 ways as a sum of consecutive naturals, for example, 153028 + ... + 155799.

It is an arithmetic number, because the mean of its divisors is an integer number (24088584).

Almost surely, 2^428034222 is an apocalyptic number.

428034222 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

428034222 is an abundant number, since it is smaller than the sum of its proper divisors (728217810).

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

428034222 is a wasteful number, since it uses less digits than its factorization.

428034222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308853 (or 308850 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 428034222 is about 20688.9879404479. The cubic root of 428034222 is about 753.6322895647.

The spelling of 428034222 in words is "four hundred twenty-eight million, thirty-four thousand, two hundred twenty-two".