84218432 has 28 divisors (see below), whose sum is σ = 168341040. Its totient is φ = 41801856.

The previous prime is 84218423. The next prime is 84218471. The reversal of 84218432 is 23481248.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4163 + ... + 13629.

It is an arithmetic number, because the mean of its divisors is an integer number (6012180).

Almost surely, 2^84218432 is an apocalyptic number.

It is an amenable number.

84218432 is a deficient number, since it is larger than the sum of its proper divisors (84122608).

84218432 is a wasteful number, since it uses less digits than its factorization.

84218432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9618 (or 9608 counting only the distinct ones).

The product of its digits is 12288, while the sum is 32.

The square root of 84218432 is about 9177.0600956951. The cubic root of 84218432 is about 438.3311993548.

The spelling of 84218432 in words is "eighty-four million, two hundred eighteen thousand, four hundred thirty-two".