1868836 has 6 divisors (see below), whose sum is σ = 3270470. Its totient is φ = 934416.

The previous prime is 1868813. The next prime is 1868837. The reversal of 1868836 is 6388681.

It can be written as a sum of positive squares in only one way, i.e., 1806336 + 62500 = 1344^2 + 250^2 .

It is not an unprimeable number, because it can be changed into a prime (1868837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 233601 + ... + 233608.

2^1868836 is an apocalyptic number.

It is an amenable number.

1868836 is a deficient number, since it is larger than the sum of its proper divisors (1401634).

1868836 is a wasteful number, since it uses less digits than its factorization.

1868836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467213 (or 467211 counting only the distinct ones).

The product of its digits is 55296, while the sum is 40.

The square root of 1868836 is about 1367.0537663165. The cubic root of 1868836 is about 123.1753288711.

It can be divided in two parts, 1868 and 836, that added together give a square (2704 = 52²).

The spelling of 1868836 in words is "one million, eight hundred sixty-eight thousand, eight hundred thirty-six".