1840872 has 64 divisors (see below), whose sum is σ = 5299200. Its totient is φ = 527040.

The previous prime is 1840871. The next prime is 1840877. The reversal of 1840872 is 2780481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1840871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4833 + ... + 5199.

It is an arithmetic number, because the mean of its divisors is an integer number (82800).

2^1840872 is an apocalyptic number.

1840872 is a gapful number since it is divisible by the number (12) 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 1840872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2649600).

1840872 is an abundant number, since it is smaller than the sum of its proper divisors (3458328).

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

1840872 is a wasteful number, since it uses less digits than its factorization.

1840872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 402 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 1840872 is about 1356.7873820168. The cubic root of 1840872 is about 122.5578679807.

The spelling of 1840872 in words is "one million, eight hundred forty thousand, eight hundred seventy-two".