1800246 has 16 divisors (see below), whose sum is σ = 4114944. Its totient is φ = 514344.

The previous prime is 1800221. The next prime is 1800257. The reversal of 1800246 is 6420081.

It is a Harshad number since it is a multiple of its sum of digits (21).

1800246 is a modest number, since divided by 246 gives 18 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21390 + ... + 21473.

It is an arithmetic number, because the mean of its divisors is an integer number (257184).

2^1800246 is an apocalyptic number.

1800246 is an abundant number, since it is smaller than the sum of its proper divisors (2314698).

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

1800246 is a wasteful number, since it uses less digits than its factorization.

1800246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42875.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1800246 is about 1341.7324621548. The cubic root of 1800246 is about 121.6495812209.

The spelling of 1800246 in words is "one million, eight hundred thousand, two hundred forty-six".