1240330233 has 4 divisors (see below), whose sum is σ = 1653773648. Its totient is φ = 826886820.

The previous prime is 1240330219. The next prime is 1240330249. The reversal of 1240330233 is 3320330421.

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 not a de Polignac number, because 1240330233 - 2¹⁷ = 1240199161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1240330213) 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, 206721703 + ... + 206721708.

It is an arithmetic number, because the mean of its divisors is an integer number (413443412).

Almost surely, 2^1240330233 is an apocalyptic number.

It is an amenable number.

1240330233 is a deficient number, since it is larger than the sum of its proper divisors (413443415).

1240330233 is an equidigital number, since it uses as much as digits as its factorization.

1240330233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413443414.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 1240330233 is about 35218.3224046802. The cubic root of 1240330233 is about 1074.4324339094.

Adding to 1240330233 its reverse (3320330421), we get a palindrome (4560660654).

It can be divided in two parts, 12403302 and 33, that multiplied together give a triangular number (409308966 = T₂₈₆₁₁).

The spelling of 1240330233 in words is "one billion, two hundred forty million, three hundred thirty thousand, two hundred thirty-three".