1840242 has 8 divisors (see below), whose sum is σ = 3680496. Its totient is φ = 613412.

The previous prime is 1840231. The next prime is 1840259. The reversal of 1840242 is 2420481.

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

1840242 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153348 + ... + 153359.

It is an arithmetic number, because the mean of its divisors is an integer number (460062).

2^1840242 is an apocalyptic number.

1840242 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.

1840242 is a wasteful number, since it uses less digits than its factorization.

1840242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306712.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1840242 is about 1356.5551960757. Note that the first 3 decimals coincide. The cubic root of 1840242 is about 122.5438854285.

The spelling of 1840242 in words is "one million, eight hundred forty thousand, two hundred forty-two".