12044381 has 4 divisors (see below), whose sum is σ = 12752892. Its totient is φ = 11335872.

The previous prime is 12044371. The next prime is 12044401. The reversal of 12044381 is 18344021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9205156 + 2839225 = 3034^2 + 1685^2 .

It is not a de Polignac number, because 12044381 - 2⁶ = 12044317 is a prime.

It is a super-2 number, since 2×12044381² = 290134227346322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12044311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 354230 + ... + 354263.

It is an arithmetic number, because the mean of its divisors is an integer number (3188223).

Almost surely, 2^12044381 is an apocalyptic number.

It is an amenable number.

12044381 is a deficient number, since it is larger than the sum of its proper divisors (708511).

12044381 is an equidigital number, since it uses as much as digits as its factorization.

12044381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708510.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 12044381 is about 3470.5015487678. The cubic root of 12044381 is about 229.2247432899.

The spelling of 12044381 in words is "twelve million, forty-four thousand, three hundred eighty-one".