42429228 has 12 divisors (see below), whose sum is σ = 99001560. Its totient is φ = 14143072.

The previous prime is 42429209. The next prime is 42429253. The reversal of 42429228 is 82292424.

It is a happy number.

42429228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

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, 1767873 + ... + 1767896.

It is an arithmetic number, because the mean of its divisors is an integer number (8250130).

Almost surely, 2^42429228 is an apocalyptic number.

It is an amenable number.

42429228 is an abundant number, since it is smaller than the sum of its proper divisors (56572332).

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

42429228 is a wasteful number, since it uses less digits than its factorization.

42429228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3535776 (or 3535774 counting only the distinct ones).

The product of its digits is 18432, while the sum is 33.

The square root of 42429228 is about 6513.7721790066. The cubic root of 42429228 is about 348.7827867070.

The spelling of 42429228 in words is "forty-two million, four hundred twenty-nine thousand, two hundred twenty-eight".