840674458 has 8 divisors (see below), whose sum is σ = 1358012628. Its totient is φ = 388003584.

The previous prime is 840674453. The next prime is 840674473. The reversal of 840674458 is 854476048.

840674458 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 837928809 + 2745649 = 28947^2 + 1657^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (840674453) 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, 16166791 + ... + 16166842.

Almost surely, 2^840674458 is an apocalyptic number.

840674458 is a deficient number, since it is larger than the sum of its proper divisors (517338170).

840674458 is a wasteful number, since it uses less digits than its factorization.

840674458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32333648.

The product of its (nonzero) digits is 860160, while the sum is 46.

The square root of 840674458 is about 28994.3866636285. The cubic root of 840674458 is about 943.7912591760.

The spelling of 840674458 in words is "eight hundred forty million, six hundred seventy-four thousand, four hundred fifty-eight".