427581384 has 32 divisors (see below), whose sum is σ = 1076764320. Its totient is φ = 141485696.

The previous prime is 427581373. The next prime is 427581397. The reversal of 427581384 is 483185724.

It is an unprimeable number.

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, 61734 + ... + 68309.

It is an arithmetic number, because the mean of its divisors is an integer number (33648885).

Almost surely, 2^427581384 is an apocalyptic number.

It is an amenable number.

427581384 is an abundant number, since it is smaller than the sum of its proper divisors (649182936).

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

427581384 is a wasteful number, since it uses less digits than its factorization.

427581384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130189 (or 130185 counting only the distinct ones).

The product of its digits is 215040, while the sum is 42.

The square root of 427581384 is about 20678.0411064491. The cubic root of 427581384 is about 753.3664278323.

The spelling of 427581384 in words is "four hundred twenty-seven million, five hundred eighty-one thousand, three hundred eighty-four".