42228768 has 24 divisors (see below), whose sum is σ = 110850768. Its totient is φ = 14076224.

The previous prime is 42228751. The next prime is 42228787. The reversal of 42228768 is 86782224.

It is a tau number, because it is divible by the number of its divisors (24).

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, 219846 + ... + 220037.

It is an arithmetic number, because the mean of its divisors is an integer number (4618782).

Almost surely, 2^42228768 is an apocalyptic number.

42228768 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

42228768 is an abundant number, since it is smaller than the sum of its proper divisors (68622000).

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

42228768 is a wasteful number, since it uses less digits than its factorization.

42228768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439896 (or 439888 counting only the distinct ones).

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

The square root of 42228768 is about 6498.3665639913. The cubic root of 42228768 is about 348.2326360995.

The spelling of 42228768 in words is "forty-two million, two hundred twenty-eight thousand, seven hundred sixty-eight".