42166450 has 48 divisors (see below), whose sum is σ = 81807264. Its totient is φ = 16156800.

The previous prime is 42166427. The next prime is 42166459. The reversal of 42166450 is 5466124.

It is not an unprimeable number, because it can be changed into a prime (42166459) 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 23 ways as a sum of consecutive naturals, for example, 137197 + ... + 137503.

It is an arithmetic number, because the mean of its divisors is an integer number (1704318).

Almost surely, 2^42166450 is an apocalyptic number.

42166450 is a deficient number, since it is larger than the sum of its proper divisors (39640814).

42166450 is a wasteful number, since it uses less digits than its factorization.

42166450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427 (or 422 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 42166450 is about 6493.5698964437. The cubic root of 42166450 is about 348.0612533655.

The spelling of 42166450 in words is "forty-two million, one hundred sixty-six thousand, four hundred fifty".