12001838 has 16 divisors (see below), whose sum is σ = 18732480. Its totient is φ = 5762016.

The previous prime is 12001823. The next prime is 12001841. The reversal of 12001838 is 83810021.

12001838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 4820 + ... + 6872.

It is an arithmetic number, because the mean of its divisors is an integer number (1170780).

Almost surely, 2^12001838 is an apocalyptic number.

12001838 is a deficient number, since it is larger than the sum of its proper divisors (6730642).

12001838 is a wasteful number, since it uses less digits than its factorization.

12001838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171.

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

The square root of 12001838 is about 3464.3668974287. The cubic root of 12001838 is about 228.9545367183.

Adding to 12001838 its reverse (83810021), we get a palindrome (95811859).

The spelling of 12001838 in words is "twelve million, one thousand, eight hundred thirty-eight".