1818801 has 32 divisors (see below), whose sum is σ = 2903040. Its totient is φ = 1123200.

The previous prime is 1818799. The next prime is 1818833. The reversal of 1818801 is 1088181.

It is not a de Polignac number, because 1818801 - 2¹ = 1818799 is a prime.

It is a super-3 number, since 3×1818801³ = 18049983434333329203, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1818871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34291 + ... + 34343.

It is an arithmetic number, because the mean of its divisors is an integer number (90720).

2^1818801 is an apocalyptic number.

It is an amenable number.

1818801 is a deficient number, since it is larger than the sum of its proper divisors (1084239).

1818801 is a wasteful number, since it uses less digits than its factorization.

1818801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 27.

The square root of 1818801 is about 1348.6293041455. The cubic root of 1818801 is about 122.0660978385.

The spelling of 1818801 in words is "one million, eight hundred eighteen thousand, eight hundred one".