42866166 has 32 divisors (see below), whose sum is σ = 103138560. Its totient is φ = 11602656.

The previous prime is 42866137. The next prime is 42866171. The reversal of 42866166 is 66166824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26061 + ... + 27656.

It is an arithmetic number, because the mean of its divisors is an integer number (3223080).

Almost surely, 2^42866166 is an apocalyptic number.

42866166 is an abundant number, since it is smaller than the sum of its proper divisors (60272394).

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

42866166 is a wasteful number, since it uses less digits than its factorization.

42866166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53748.

The product of its digits is 82944, while the sum is 39.

The square root of 42866166 is about 6547.2258247291. The cubic root of 42866166 is about 349.9759602536.

The spelling of 42866166 in words is "forty-two million, eight hundred sixty-six thousand, one hundred sixty-six".