84285144 has 32 divisors (see below), whose sum is σ = 234126000. Its totient is φ = 28094976.

The previous prime is 84285139. The next prime is 84285161. The reversal of 84285144 is 44158248.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 84285099 and 84285108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194889 + ... + 195320.

Almost surely, 2^84285144 is an apocalyptic number.

It is an amenable number.

84285144 is an abundant number, since it is smaller than the sum of its proper divisors (149840856).

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

84285144 is a wasteful number, since it uses less digits than its factorization.

84285144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390224 (or 390214 counting only the distinct ones).

The product of its digits is 40960, while the sum is 36.

The square root of 84285144 is about 9180.6940914073. The cubic root of 84285144 is about 438.4469073319.

The spelling of 84285144 in words is "eighty-four million, two hundred eighty-five thousand, one hundred forty-four".