1872104 has 32 divisors (see below), whose sum is σ = 3870720. Its totient is φ = 843456.

The previous prime is 1872097. The next prime is 1872109. The reversal of 1872104 is 4012781.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1872104.

It is not an unprimeable number, because it can be changed into a prime (1872109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4697 + ... + 5079.

It is an arithmetic number, because the mean of its divisors is an integer number (120960).

2^1872104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1872104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1935360).

1872104 is an abundant number, since it is smaller than the sum of its proper divisors (1998616).

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

1872104 is a wasteful number, since it uses less digits than its factorization.

1872104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449 (or 445 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 1872104 is about 1368.2485154386. The cubic root of 1872104 is about 123.2470852239.

Adding to 1872104 its reverse (4012781), we get a palindrome (5884885).

The spelling of 1872104 in words is "one million, eight hundred seventy-two thousand, one hundred four".