840506248 has 16 divisors (see below), whose sum is σ = 1668652380. Its totient is φ = 395532288.

The previous prime is 840506243. The next prime is 840506267. The reversal of 840506248 is 842605048.

It can be written as a sum of positive squares in 2 ways, for example, as 733218084 + 107288164 = 27078^2 + 10358^2 .

It is not an unprimeable number, because it can be changed into a prime (840506243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3089961 + ... + 3090232.

Almost surely, 2^840506248 is an apocalyptic number.

It is an amenable number.

840506248 is a deficient number, since it is larger than the sum of its proper divisors (828146132).

840506248 is a wasteful number, since it uses less digits than its factorization.

840506248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6180216 (or 6180212 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 840506248 is about 28991.4857846230. The cubic root of 840506248 is about 943.7283074528.

The spelling of 840506248 in words is "eight hundred forty million, five hundred six thousand, two hundred forty-eight".