67428228 has 48 divisors (see below), whose sum is σ = 180238464. Its totient is φ = 19219200.

The previous prime is 67428211. The next prime is 67428247. The reversal of 67428228 is 82282476.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51178 + ... + 52478.

It is an arithmetic number, because the mean of its divisors is an integer number (3754968).

Almost surely, 2^67428228 is an apocalyptic number.

It is an amenable number.

67428228 is an abundant number, since it is smaller than the sum of its proper divisors (112810236).

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

67428228 is a wasteful number, since it uses less digits than its factorization.

67428228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932 (or 1930 counting only the distinct ones).

The product of its digits is 86016, while the sum is 39.

The square root of 67428228 is about 8211.4692960517. The cubic root of 67428228 is about 407.0182808065.

The spelling of 67428228 in words is "sixty-seven million, four hundred twenty-eight thousand, two hundred twenty-eight".