1801268 has 24 divisors (see below), whose sum is σ = 3760512. Its totient is φ = 738144.

The previous prime is 1801259. The next prime is 1801273. The reversal of 1801268 is 8621081.

It is a plaindrome in base 9.

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, 755 + ... + 2042.

It is an arithmetic number, because the mean of its divisors is an integer number (156688).

2^1801268 is an apocalyptic number.

It is an amenable number.

1801268 is an abundant number, since it is smaller than the sum of its proper divisors (1959244).

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

1801268 is a wasteful number, since it uses less digits than its factorization.

1801268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2831 (or 2829 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 1801268 is about 1342.1132590061. The cubic root of 1801268 is about 121.6725970296.

The spelling of 1801268 in words is "one million, eight hundred one thousand, two hundred sixty-eight".