1873844 has 12 divisors (see below), whose sum is σ = 3747744. Its totient is φ = 803064.

The previous prime is 1873831. The next prime is 1873849. The reversal of 1873844 is 4483781.

It is a happy number.

1873844 is an admirable number.

It is a super-2 number, since 2×1873844² = 7022582672672, which contains 22 as substring.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1873849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33434 + ... + 33489.

It is an arithmetic number, because the mean of its divisors is an integer number (312312).

2^1873844 is an apocalyptic number.

1873844 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1873844 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.

1873844 is a wasteful number, since it uses less digits than its factorization.

1873844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66934 (or 66932 counting only the distinct ones).

The product of its digits is 21504, while the sum is 35.

The square root of 1873844 is about 1368.8842171637. The cubic root of 1873844 is about 123.2852568076.

The spelling of 1873844 in words is "one million, eight hundred seventy-three thousand, eight hundred forty-four".