1800948 has 24 divisors (see below), whose sum is σ = 4227328. Its totient is φ = 596736.

The previous prime is 1800937. The next prime is 1800949. The reversal of 1800948 is 8490081.

It is a happy number.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1800949) 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, 2340 + ... + 3012.

2^1800948 is an apocalyptic number.

It is an amenable number.

1800948 is an abundant number, since it is smaller than the sum of its proper divisors (2426380).

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

1800948 is a wasteful number, since it uses less digits than its factorization.

1800948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903 (or 901 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 1800948 is about 1341.9940387349. The cubic root of 1800948 is about 121.6653914505.

The spelling of 1800948 in words is "one million, eight hundred thousand, nine hundred forty-eight".