42228818 has 8 divisors (see below), whose sum is σ = 64145280. Its totient is φ = 20847060.

The previous prime is 42228793. The next prime is 42228829. The reversal of 42228818 is 81882224.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 133478 + ... + 133793.

It is an arithmetic number, because the mean of its divisors is an integer number (8018160).

Almost surely, 2^42228818 is an apocalyptic number.

42228818 is a deficient number, since it is larger than the sum of its proper divisors (21916462).

42228818 is a wasteful number, since it uses less digits than its factorization.

42228818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267352.

The product of its digits is 16384, while the sum is 35.

The square root of 42228818 is about 6498.3704111108. The cubic root of 42228818 is about 348.2327735384.

The spelling of 42228818 in words is "forty-two million, two hundred twenty-eight thousand, eight hundred eighteen".