1800050 has 48 divisors (see below), whose sum is σ = 3958080. Its totient is φ = 596160.

The previous prime is 1800047. The next prime is 1800067. The reversal of 1800050 is 500081.

1800050 = T₇₆ + T₇₇ + ... + T₂₂₃.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 1799998 and 1800034.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12881 + ... + 13019.

It is an arithmetic number, because the mean of its divisors is an integer number (82460).

2^1800050 is an apocalyptic number.

1800050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1800050 is an abundant number, since it is smaller than the sum of its proper divisors (2158030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1800050 is a wasteful number, since it uses less digits than its factorization.

1800050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 1800050 is about 1341.6594202703. The cubic root of 1800050 is about 121.6451662347.

The spelling of 1800050 in words is "one million, eight hundred thousand, fifty".