1844940 has 48 divisors (see below), whose sum is σ = 5235552. Its totient is φ = 485376.

The previous prime is 1844939. The next prime is 1844963. The reversal of 1844940 is 494481.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1844898 and 1844907.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5662 + ... + 5978.

It is an arithmetic number, because the mean of its divisors is an integer number (109074).

2^1844940 is an apocalyptic number.

1844940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1844940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2617776).

1844940 is an abundant number, since it is smaller than the sum of its proper divisors (3390612).

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

1844940 is a wasteful number, since it uses less digits than its factorization.

1844940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426 (or 424 counting only the distinct ones).

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

The square root of 1844940 is about 1358.2856842358. The cubic root of 1844940 is about 122.6480786002.

The spelling of 1844940 in words is "one million, eight hundred forty-four thousand, nine hundred forty".