1800164 has 24 divisors (see below), whose sum is σ = 3483648. Its totient is φ = 809600.

The previous prime is 1800157. The next prime is 1800167. The reversal of 1800164 is 4610081.

It is not an unprimeable number, because it can be changed into a prime (1800167) 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, 989 + ... + 2139.

It is an arithmetic number, because the mean of its divisors is an integer number (145152).

2^1800164 is an apocalyptic number.

It is an amenable number.

1800164 is a deficient number, since it is larger than the sum of its proper divisors (1683484).

1800164 is a wasteful number, since it uses less digits than its factorization.

1800164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195 (or 1193 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 1800164 is about 1341.7019042992. The cubic root of 1800164 is about 121.6477341738.

The spelling of 1800164 in words is "one million, eight hundred thousand, one hundred sixty-four".