427816388 has 24 divisors (see below), whose sum is σ = 795463200. Its totient is φ = 200752128.

The previous prime is 427816387. The next prime is 427816409. The reversal of 427816388 is 883618724.

It is not an unprimeable number, because it can be changed into a prime (427816387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18173 + ... + 34436.

It is an arithmetic number, because the mean of its divisors is an integer number (33144300).

Almost surely, 2^427816388 is an apocalyptic number.

It is an amenable number.

427816388 is a deficient number, since it is larger than the sum of its proper divisors (367646812).

427816388 is a wasteful number, since it uses less digits than its factorization.

427816388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52739 (or 52737 counting only the distinct ones).

The product of its digits is 516096, while the sum is 47.

The square root of 427816388 is about 20683.7227790357. The cubic root of 427816388 is about 753.5044223797.

The spelling of 427816388 in words is "four hundred twenty-seven million, eight hundred sixteen thousand, three hundred eighty-eight".