2233307981 has 4 divisors (see below), whose sum is σ = 2330408352. Its totient is φ = 2136207612.

The previous prime is 2233307957. The next prime is 2233308023. The reversal of 2233307981 is 1897033322.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 2233307981 - 2⁶ = 2233307917 is a prime.

It is a super-2 number, since 2×2233307981² = 9975329075996592722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2233307581) 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, 48550151 + ... + 48550196.

It is an arithmetic number, because the mean of its divisors is an integer number (582602088).

Almost surely, 2^2233307981 is an apocalyptic number.

It is an amenable number.

2233307981 is a deficient number, since it is larger than the sum of its proper divisors (97100371).

2233307981 is an equidigital number, since it uses as much as digits as its factorization.

2233307981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97100370.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 2233307981 is about 47257.8880294073. Note that the first 3 decimals coincide. The cubic root of 2233307981 is about 1307.1222459182.

The spelling of 2233307981 in words is "two billion, two hundred thirty-three million, three hundred seven thousand, nine hundred eighty-one".