840496554 has 16 divisors (see below), whose sum is σ = 1867770240. Its totient is φ = 280165500.

The previous prime is 840496549. The next prime is 840496621. The reversal of 840496554 is 455694048.

840496554 is a `hidden beast` number, since 8 + 4 + 0 + 4 + 96 + 554 = 666.

840496554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7782322 + ... + 7782429.

It is an arithmetic number, because the mean of its divisors is an integer number (116735640).

Almost surely, 2^840496554 is an apocalyptic number.

840496554 is an abundant number, since it is smaller than the sum of its proper divisors (1027273686).

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

840496554 is a wasteful number, since it uses less digits than its factorization.

840496554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15564762 (or 15564756 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The square root of 840496554 is about 28991.3185971249. The cubic root of 840496554 is about 943.7246792674.

The spelling of 840496554 in words is "eight hundred forty million, four hundred ninety-six thousand, five hundred fifty-four".