840852648 has 48 divisors (see below), whose sum is σ = 2300805780. Its totient is φ = 277392384.

The previous prime is 840852637. The next prime is 840852667. The reversal of 840852648 is 846258048.

840852648 is a `hidden beast` number, since 84 + 0 + 8 + 526 + 48 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 821510244 + 19342404 = 28662^2 + 4398^2 .

It is a super-2 number, since 2×840852648² = 1414066351297223808, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53215 + ... + 67182.

Almost surely, 2^840852648 is an apocalyptic number.

It is an amenable number.

840852648 is an abundant number, since it is smaller than the sum of its proper divisors (1459953132).

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

840852648 is a wasteful number, since it uses less digits than its factorization.

840852648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120506 (or 120499 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 45.

The square root of 840852648 is about 28997.4593369833. The cubic root of 840852648 is about 943.8579367038.

The spelling of 840852648 in words is "eight hundred forty million, eight hundred fifty-two thousand, six hundred forty-eight".