840154266 has 24 divisors (see below), whose sum is σ = 2080382304. Its totient is φ = 240044040.

The previous prime is 840154261. The next prime is 840154267. The reversal of 840154266 is 662451048.

840154266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 840154266.

It is not an unprimeable number, because it can be changed into a prime (840154261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3333820 + ... + 3334071.

It is an arithmetic number, because the mean of its divisors is an integer number (86682596).

Almost surely, 2^840154266 is an apocalyptic number.

840154266 is an abundant number, since it is smaller than the sum of its proper divisors (1240228038).

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

840154266 is a wasteful number, since it uses less digits than its factorization.

840154266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6667906 (or 6667903 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 840154266 is about 28985.4147115407. The cubic root of 840154266 is about 943.5965528277.

The spelling of 840154266 in words is "eight hundred forty million, one hundred fifty-four thousand, two hundred sixty-six".