8440124233 has 2 divisors, whose sum is σ = 8440124234. Its totient is φ = 8440124232.

The previous prime is 8440124177. The next prime is 8440124261. The reversal of 8440124233 is 3324210448.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6781028409 + 1659095824 = 82347^2 + 40732^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8440124233 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8440124195 and 8440124204.

It is not a weakly prime, because it can be changed into another prime (8440124333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4220062116 + 4220062117.

It is an arithmetic number, because the mean of its divisors is an integer number (4220062117).

Almost surely, 2^8440124233 is an apocalyptic number.

It is an amenable number.

8440124233 is a deficient number, since it is larger than the sum of its proper divisors (1).

8440124233 is an equidigital number, since it uses as much as digits as its factorization.

8440124233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 31.

The square root of 8440124233 is about 91870.1487589957. The cubic root of 8440124233 is about 2036.0242502512.

The spelling of 8440124233 in words is "eight billion, four hundred forty million, one hundred twenty-four thousand, two hundred thirty-three".