420442068 has 24 divisors (see below), whose sum is σ = 984947040. Its totient is φ = 139588000.

The previous prime is 420442067. The next prime is 420442097. The reversal of 420442068 is 860244024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420442067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66783 + ... + 72806.

It is an arithmetic number, because the mean of its divisors is an integer number (41039460).

Almost surely, 2^420442068 is an apocalyptic number.

It is an amenable number.

420442068 is an abundant number, since it is smaller than the sum of its proper divisors (564504972).

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

420442068 is a wasteful number, since it uses less digits than its factorization.

420442068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139847 (or 139845 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

The square root of 420442068 is about 20504.6840502359. The cubic root of 420442068 is about 749.1498918968.

The spelling of 420442068 in words is "four hundred twenty million, four hundred forty-two thousand, sixty-eight".