427680018 has 24 divisors (see below), whose sum is σ = 932782656. Its totient is φ = 141615000.

The previous prime is 427680017. The next prime is 427680049. The reversal of 427680018 is 810086724.

It is not an unprimeable number, because it can be changed into a prime (427680017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75958 + ... + 81393.

It is an arithmetic number, because the mean of its divisors is an integer number (38865944).

Almost surely, 2^427680018 is an apocalyptic number.

427680018 is an abundant number, since it is smaller than the sum of its proper divisors (505102638).

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

427680018 is a wasteful number, since it uses less digits than its factorization.

427680018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157510 (or 157507 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 427680018 is about 20680.4259627310. The cubic root of 427680018 is about 753.4243519563.

The spelling of 427680018 in words is "four hundred twenty-seven million, six hundred eighty thousand, eighteen".