1801238 has 16 divisors (see below), whose sum is σ = 2877120. Its totient is φ = 843336.

The previous prime is 1801237. The next prime is 1801259. The reversal of 1801238 is 8321081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1801237) 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, 3845 + ... + 4287.

It is an arithmetic number, because the mean of its divisors is an integer number (179820).

2^1801238 is an apocalyptic number.

1801238 is a deficient number, since it is larger than the sum of its proper divisors (1075882).

1801238 is a wasteful number, since it uses less digits than its factorization.

1801238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 1801238 is about 1342.1020825556. The cubic root of 1801238 is about 121.6719215428.

The spelling of 1801238 in words is "one million, eight hundred one thousand, two hundred thirty-eight".