1801168 has 10 divisors (see below), whose sum is σ = 3489794. Its totient is φ = 900576.

The previous prime is 1801117. The next prime is 1801187. The reversal of 1801168 is 8611081.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1617984 + 183184 = 1272^2 + 428^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56271 + ... + 56302.

2^1801168 is an apocalyptic number.

It is an amenable number.

1801168 is a deficient number, since it is larger than the sum of its proper divisors (1688626).

1801168 is a wasteful number, since it uses less digits than its factorization.

1801168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112581 (or 112575 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 1801168 is about 1342.0760038090. The cubic root of 1801168 is about 121.6703453778.

The spelling of 1801168 in words is "one million, eight hundred one thousand, one hundred sixty-eight".