42166588 has 12 divisors (see below), whose sum is σ = 75184200. Its totient is φ = 20685392.

The previous prime is 42166549. The next prime is 42166627. The reversal of 42166588 is 88566124.

It is an interprime number because it is at equal distance from previous prime (42166549) and next prime (42166627).

It is a super-2 number, since 2×42166588² = 3556042287123488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42166588.

It is a congruent number.

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, 99238 + ... + 99661.

It is an arithmetic number, because the mean of its divisors is an integer number (6265350).

Almost surely, 2^42166588 is an apocalyptic number.

It is an amenable number.

42166588 is a deficient number, since it is larger than the sum of its proper divisors (33017612).

42166588 is a wasteful number, since it uses less digits than its factorization.

42166588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198956 (or 198954 counting only the distinct ones).

The product of its digits is 92160, while the sum is 40.

The square root of 42166588 is about 6493.5805223313. The cubic root of 42166588 is about 348.0616330702.

The spelling of 42166588 in words is "forty-two million, one hundred sixty-six thousand, five hundred eighty-eight".