427986180 has 144 divisors (see below), whose sum is σ = 1363811904. Its totient is φ = 112648320.

The previous prime is 427986173. The next prime is 427986193. The reversal of 427986180 is 81689724.

427986180 is a `hidden beast` number, since 4 + 27 + 9 + 8 + 618 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 402850 + ... + 403910.

It is an arithmetic number, because the mean of its divisors is an integer number (9470916).

Almost surely, 2^427986180 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 427986180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (681905952).

427986180 is an abundant number, since it is smaller than the sum of its proper divisors (935825724).

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

427986180 is a wasteful number, since it uses less digits than its factorization.

427986180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168 (or 1154 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 427986180 is about 20687.8268554239. The cubic root of 427986180 is about 753.6040929430.

The spelling of 427986180 in words is "four hundred twenty-seven million, nine hundred eighty-six thousand, one hundred eighty".