840498474 has 32 divisors (see below), whose sum is σ = 1795069440. Its totient is φ = 261777600.

The previous prime is 840498473. The next prime is 840498517. The reversal of 840498474 is 474894048.

840498474 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (840498473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72517 + ... + 83304.

It is an arithmetic number, because the mean of its divisors is an integer number (56095920).

Almost surely, 2^840498474 is an apocalyptic number.

840498474 is an abundant number, since it is smaller than the sum of its proper divisors (954570966).

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

840498474 is a wasteful number, since it uses less digits than its factorization.

840498474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155886.

The product of its (nonzero) digits is 1032192, while the sum is 48.

The square root of 840498474 is about 28991.3517104670. The cubic root of 840498474 is about 943.7253978704.

The spelling of 840498474 in words is "eight hundred forty million, four hundred ninety-eight thousand, four hundred seventy-four".