1840494 has 8 divisors (see below), whose sum is σ = 3681000. Its totient is φ = 613496.

The previous prime is 1840493. The next prime is 1840519. The reversal of 1840494 is 4940481.

1840494 is an esthetic number in base 5, because in such base its adjacent digits differ by 1.

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

1840494 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1840493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153369 + ... + 153380.

It is an arithmetic number, because the mean of its divisors is an integer number (460125).

2^1840494 is an apocalyptic number.

1840494 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.

1840494 is a wasteful number, since it uses less digits than its factorization.

1840494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306754.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 1840494 is about 1356.6480752207. The cubic root of 1840494 is about 122.5494788323.

The spelling of 1840494 in words is "one million, eight hundred forty thousand, four hundred ninety-four".