42115766 has 32 divisors (see below), whose sum is σ = 83400192. Its totient is φ = 15442560.

The previous prime is 42115757. The next prime is 42115771. The reversal of 42115766 is 66751124.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 5426 + ... + 10661.

It is an arithmetic number, because the mean of its divisors is an integer number (2606256).

Almost surely, 2^42115766 is an apocalyptic number.

42115766 is a deficient number, since it is larger than the sum of its proper divisors (41284426).

42115766 is a wasteful number, since it uses less digits than its factorization.

42115766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16124.

The product of its digits is 10080, while the sum is 32.

The square root of 42115766 is about 6489.6660931053. Note that the first 3 decimals coincide. The cubic root of 42115766 is about 347.9217411111.

The spelling of 42115766 in words is "forty-two million, one hundred fifteen thousand, seven hundred sixty-six".