2233981 has 4 divisors (see below), whose sum is σ = 2267392. Its totient is φ = 2200572.

The previous prime is 2233969. The next prime is 2233993. The reversal of 2233981 is 1893322.

2233981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1893322 = 2 ⋅946661.

It is an interprime number because it is at equal distance from previous prime (2233969) and next prime (2233993).

It is a cyclic number.

It is not a de Polignac number, because 2233981 - 2¹⁹ = 1709693 is a prime.

It is a super-2 number, since 2×2233981² = 9981342216722, 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 (2233901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16605 + ... + 16738.

It is an arithmetic number, because the mean of its divisors is an integer number (566848).

2^2233981 is an apocalyptic number.

It is an amenable number.

2233981 is a deficient number, since it is larger than the sum of its proper divisors (33411).

2233981 is an equidigital number, since it uses as much as digits as its factorization.

2233981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33410.

The product of its digits is 2592, while the sum is 28.

The square root of 2233981 is about 1494.6507953365. The cubic root of 2233981 is about 130.7253535431.

The spelling of 2233981 in words is "two million, two hundred thirty-three thousand, nine hundred eighty-one".