840246284 has 24 divisors (see below), whose sum is σ = 1558196640. Its totient is φ = 395087616.

The previous prime is 840246247. The next prime is 840246287. The reversal of 840246284 is 482642048.

It is not an unprimeable number, because it can be changed into a prime (840246287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92849 + ... + 101495.

It is an arithmetic number, because the mean of its divisors is an integer number (64924860).

Almost surely, 2^840246284 is an apocalyptic number.

It is an amenable number.

840246284 is a deficient number, since it is larger than the sum of its proper divisors (717950356).

840246284 is a wasteful number, since it uses less digits than its factorization.

840246284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10097 (or 10095 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 38.

The square root of 840246284 is about 28987.0019836478. The cubic root of 840246284 is about 943.6310007466.

The spelling of 840246284 in words is "eight hundred forty million, two hundred forty-six thousand, two hundred eighty-four".