1853994 has 8 divisors (see below), whose sum is σ = 3708000. Its totient is φ = 617996.

The previous prime is 1853987. The next prime is 1854011. The reversal of 1853994 is 4993581.

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

1853994 is an admirable number.

It is a congruent 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, 154494 + ... + 154505.

It is an arithmetic number, because the mean of its divisors is an integer number (463500).

2^1853994 is an apocalyptic number.

1853994 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.

1853994 is a wasteful number, since it uses less digits than its factorization.

1853994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309004.

The product of its digits is 38880, while the sum is 39.

The square root of 1853994 is about 1361.6144828842. The cubic root of 1853994 is about 122.8483821562.

The spelling of 1853994 in words is "one million, eight hundred fifty-three thousand, nine hundred ninety-four".