1868244 has 48 divisors (see below), whose sum is σ = 5203968. Its totient is φ = 510048.

The previous prime is 1868239. The next prime is 1868257. The reversal of 1868244 is 4428681.

It is a plaindrome in base 9.

It is a congruent number.

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, 1449 + ... + 2415.

It is an arithmetic number, because the mean of its divisors is an integer number (108416).

2^1868244 is an apocalyptic number.

1868244 is a gapful number since it is divisible by the number (14) 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 1868244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2601984).

1868244 is an abundant number, since it is smaller than the sum of its proper divisors (3335724).

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

1868244 is a wasteful number, since it uses less digits than its factorization.

1868244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004 (or 1002 counting only the distinct ones).

The product of its digits is 12288, while the sum is 33.

The square root of 1868244 is about 1366.8372251296. The cubic root of 1868244 is about 123.1623212207.

It can be divided in two parts, 1868 and 244, that added together give a palindrome (2112).

The spelling of 1868244 in words is "one million, eight hundred sixty-eight thousand, two hundred forty-four".