240213433 has 2 divisors, whose sum is σ = 240213434. Its totient is φ = 240213432.

The previous prime is 240213431. The next prime is 240213469. The reversal of 240213433 is 334312042.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143328784 + 96884649 = 11972^2 + 9843^2 .

It is a cyclic number.

It is not a de Polignac number, because 240213433 - 2¹ = 240213431 is a prime.

Together with 240213431, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (240213431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120106716 + 120106717.

It is an arithmetic number, because the mean of its divisors is an integer number (120106717).

Almost surely, 2^240213433 is an apocalyptic number.

It is an amenable number.

240213433 is a deficient number, since it is larger than the sum of its proper divisors (1).

240213433 is an equidigital number, since it uses as much as digits as its factorization.

240213433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 240213433 is about 15498.8203744672. The cubic root of 240213433 is about 621.6306649300.

Adding to 240213433 its reverse (334312042), we get a palindrome (574525475).

The spelling of 240213433 in words is "two hundred forty million, two hundred thirteen thousand, four hundred thirty-three".