166286442 has 32 divisors (see below), whose sum is σ = 400089600. Its totient is φ = 45009648.

The previous prime is 166286441. The next prime is 166286459. The reversal of 166286442 is 244682661.

166286442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 166286442.

It is not an unprimeable number, because it can be changed into a prime (166286441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103392 + ... + 104987.

It is an arithmetic number, because the mean of its divisors is an integer number (12502800).

Almost surely, 2^166286442 is an apocalyptic number.

166286442 is an abundant number, since it is smaller than the sum of its proper divisors (233803158).

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

166286442 is a wasteful number, since it uses less digits than its factorization.

166286442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208410.

The product of its digits is 110592, while the sum is 39.

The square root of 166286442 is about 12895.2100409416. The cubic root of 166286442 is about 549.9023981078.

The spelling of 166286442 in words is "one hundred sixty-six million, two hundred eighty-six thousand, four hundred forty-two".