1868648 has 32 divisors (see below), whose sum is σ = 3693600. Its totient is φ = 885312.

The previous prime is 1868641. The next prime is 1868663. The reversal of 1868648 is 8468681.

It is not an unprimeable number, because it can be changed into a prime (1868641) 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, 17411 + ... + 17517.

It is an arithmetic number, because the mean of its divisors is an integer number (115425).

2^1868648 is an apocalyptic number.

It is an amenable number.

1868648 is a deficient number, since it is larger than the sum of its proper divisors (1824952).

1868648 is a wasteful number, since it uses less digits than its factorization.

1868648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 205 counting only the distinct ones).

The product of its digits is 73728, while the sum is 41.

The square root of 1868648 is about 1366.9850035754. The cubic root of 1868648 is about 123.1711983609.

Adding to 1868648 its sum of digits (41), we get a square (1868689 = 1367²).

The spelling of 1868648 in words is "one million, eight hundred sixty-eight thousand, six hundred forty-eight".