1840134 has 8 divisors (see below), whose sum is σ = 3680280. Its totient is φ = 613376.

The previous prime is 1840123. The next prime is 1840171. The reversal of 1840134 is 4310481.

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

1840134 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1840134.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153339 + ... + 153350.

It is an arithmetic number, because the mean of its divisors is an integer number (460035).

2^1840134 is an apocalyptic number.

1840134 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1840134 is a wasteful number, since it uses less digits than its factorization.

1840134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306694.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1840134 is about 1356.5153887811. The cubic root of 1840134 is about 122.5414880992.

The spelling of 1840134 in words is "one million, eight hundred forty thousand, one hundred thirty-four".