42068228 has 12 divisors (see below), whose sum is σ = 74718672. Its totient is φ = 20720040.

The previous prime is 42068207. The next prime is 42068231. The reversal of 42068228 is 82286024.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42068194 and 42068203.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78218 + ... + 78753.

It is an arithmetic number, because the mean of its divisors is an integer number (6226556).

Almost surely, 2^42068228 is an apocalyptic number.

It is an amenable number.

42068228 is a deficient number, since it is larger than the sum of its proper divisors (32650444).

42068228 is a wasteful number, since it uses less digits than its factorization.

42068228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157042 (or 157040 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 42068228 is about 6486.0024668512. The cubic root of 42068228 is about 347.7907867428.

Subtracting from 42068228 its sum of digits (32), we obtain a square (42068196 = 6486²).

The spelling of 42068228 in words is "forty-two million, sixty-eight thousand, two hundred twenty-eight".