2012381 has 8 divisors (see below), whose sum is σ = 2347200. Its totient is φ = 1724604.

The previous prime is 2012371. The next prime is 2012383. The reversal of 2012381 is 1832102.

It is not a de Polignac number, because 2012381 - 2⁶ = 2012317 is a prime.

It is a super-2 number, since 2×2012381² = 8099354578322, 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 (2012383) 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, 2591 + ... + 3276.

It is an arithmetic number, because the mean of its divisors is an integer number (293400).

2^2012381 is an apocalyptic number.

It is an amenable number.

2012381 is a deficient number, since it is larger than the sum of its proper divisors (334819).

2012381 is an frugal number, since it uses more digits than its factorization.

2012381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5888 (or 5874 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2012381 is about 1418.5841533022. The cubic root of 2012381 is about 126.2515550571.

Adding to 2012381 its reverse (1832102), we get a palindrome (3844483).

The spelling of 2012381 in words is "two million, twelve thousand, three hundred eighty-one".