1800348 has 48 divisors (see below), whose sum is σ = 4790016. Its totient is φ = 520960.

The previous prime is 1800343. The next prime is 1800361. The reversal of 1800348 is 8430081.

It is a super-2 number, since 2×1800348² = 6482505842208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1800341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2740 + ... + 3332.

It is an arithmetic number, because the mean of its divisors is an integer number (99792).

2^1800348 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1800348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2395008).

1800348 is an abundant number, since it is smaller than the sum of its proper divisors (2989668).

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

1800348 is a wasteful number, since it uses less digits than its factorization.

1800348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634 (or 632 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 1800348 is about 1341.7704721747. The cubic root of 1800348 is about 121.6518786889.

The spelling of 1800348 in words is "one million, eight hundred thousand, three hundred forty-eight".