1801854 has 12 divisors (see below), whose sum is σ = 3904056. Its totient is φ = 600612.

The previous prime is 1801853. The next prime is 1801867. The reversal of 1801854 is 4581081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1801853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50034 + ... + 50069.

It is an arithmetic number, because the mean of its divisors is an integer number (325338).

2^1801854 is an apocalyptic number.

1801854 is an abundant number, since it is smaller than the sum of its proper divisors (2102202).

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

1801854 is a wasteful number, since it uses less digits than its factorization.

1801854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100111 (or 100108 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 1801854 is about 1342.3315536782. The cubic root of 1801854 is about 121.6857900342.

The spelling of 1801854 in words is "one million, eight hundred one thousand, eight hundred fifty-four".