840016224 has 96 divisors (see below), whose sum is σ = 2461415040. Its totient is φ = 278706816.

The previous prime is 840016193. The next prime is 840016231. The reversal of 840016224 is 422610048.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193987 + ... + 198269.

It is an arithmetic number, because the mean of its divisors is an integer number (25639740).

Almost surely, 2^840016224 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 840016224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1230707520).

840016224 is an abundant number, since it is smaller than the sum of its proper divisors (1621398816).

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

840016224 is a wasteful number, since it uses less digits than its factorization.

840016224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4529 (or 4515 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 840016224 is about 28983.0333816183. The cubic root of 840016224 is about 943.5448706168.

The spelling of 840016224 in words is "eight hundred forty million, sixteen thousand, two hundred twenty-four".