42166500 has 48 divisors (see below), whose sum is σ = 122793216. Its totient is φ = 11244000.

The previous prime is 42166499. The next prime is 42166507. The reversal of 42166500 is 566124.

It is not an unprimeable number, because it can be changed into a prime (42166507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12556 + ... + 15555.

It is an arithmetic number, because the mean of its divisors is an integer number (2558192).

Almost surely, 2^42166500 is an apocalyptic number.

It is an amenable number.

42166500 is an abundant number, since it is smaller than the sum of its proper divisors (80626716).

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

42166500 is a wasteful number, since it uses less digits than its factorization.

42166500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28133 (or 28121 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 42166500 is about 6493.5737464050. The cubic root of 42166500 is about 348.0613909397.

The spelling of 42166500 in words is "forty-two million, one hundred sixty-six thousand, five hundred".