42416646 has 16 divisors (see below), whose sum is σ = 88521984. Its totient is φ = 13524104.

The previous prime is 42416641. The next prime is 42416653. The reversal of 42416646 is 64661424.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42416641) 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 7 ways as a sum of consecutive naturals, for example, 153546 + ... + 153821.

It is an arithmetic number, because the mean of its divisors is an integer number (5532624).

Almost surely, 2^42416646 is an apocalyptic number.

42416646 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

42416646 is an abundant number, since it is smaller than the sum of its proper divisors (46105338).

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

42416646 is a wasteful number, since it uses less digits than its factorization.

42416646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307395.

The product of its digits is 27648, while the sum is 33.

The square root of 42416646 is about 6512.8063075759. The cubic root of 42416646 is about 348.7483071821.

The spelling of 42416646 in words is "forty-two million, four hundred sixteen thousand, six hundred forty-six".