42287660 has 24 divisors (see below), whose sum is σ = 90311760. Its totient is φ = 16627904.

The previous prime is 42287657. The next prime is 42287669. The reversal of 42287660 is 6678224.

It is a self number, because there is not a number n which added to its sum of digits gives 42287660.

It is not an unprimeable number, because it can be changed into a prime (42287669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16739 + ... + 19098.

It is an arithmetic number, because the mean of its divisors is an integer number (3762990).

Almost surely, 2^42287660 is an apocalyptic number.

It is an amenable number.

42287660 is an abundant number, since it is smaller than the sum of its proper divisors (48024100).

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

42287660 is a wasteful number, since it uses less digits than its factorization.

42287660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35905 (or 35903 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 42287660 is about 6502.8962778134. The cubic root of 42287660 is about 348.3944419904.

The spelling of 42287660 in words is "forty-two million, two hundred eighty-seven thousand, six hundred sixty".