42166268 has 18 divisors (see below), whose sum is σ = 77113176. Its totient is φ = 20136688.

The previous prime is 42166259. The next prime is 42166277. The reversal of 42166268 is 86266124.

It is an interprime number because it is at equal distance from previous prime (42166259) and next prime (42166277).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61946 + ... + 62622.

Almost surely, 2^42166268 is an apocalyptic number.

It is an amenable number.

42166268 is a deficient number, since it is larger than the sum of its proper divisors (34946908).

42166268 is an equidigital number, since it uses as much as digits as its factorization.

42166268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381 (or 702 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 42166268 is about 6493.5558825654. Note that the first 3 decimals coincide. The cubic root of 42166268 is about 348.0607525942.

The spelling of 42166268 in words is "forty-two million, one hundred sixty-six thousand, two hundred sixty-eight".