42220766 has 8 divisors (see below), whose sum is σ = 72378480. Its totient is φ = 18094608.

The previous prime is 42220757. The next prime is 42220777. The reversal of 42220766 is 66702224.

42220766 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1507871 + ... + 1507898.

It is an arithmetic number, because the mean of its divisors is an integer number (9047310).

Almost surely, 2^42220766 is an apocalyptic number.

42220766 is a deficient number, since it is larger than the sum of its proper divisors (30157714).

42220766 is a wasteful number, since it uses less digits than its factorization.

42220766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3015778.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 42220766 is about 6497.7508416374. The cubic root of 42220766 is about 348.2106389815.

The spelling of 42220766 in words is "forty-two million, two hundred twenty thousand, seven hundred sixty-six".