240442429 has 2 divisors, whose sum is σ = 240442430. Its totient is φ = 240442428.

The previous prime is 240442403. The next prime is 240442439. The reversal of 240442429 is 924244042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185014404 + 55428025 = 13602^2 + 7445^2 .

It is a cyclic number.

It is not a de Polignac number, because 240442429 - 2¹⁵ = 240409661 is a prime.

It is equal to p_13184590 and since 240442429 and 13184590 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240442429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240442439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120221214 + 120221215.

It is an arithmetic number, because the mean of its divisors is an integer number (120221215).

Almost surely, 2^240442429 is an apocalyptic number.

It is an amenable number.

240442429 is a deficient number, since it is larger than the sum of its proper divisors (1).

240442429 is an equidigital number, since it uses as much as digits as its factorization.

240442429 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 240442429 is about 15506.2061446377. The cubic root of 240442429 is about 621.8281361586.

The spelling of 240442429 in words is "two hundred forty million, four hundred forty-two thousand, four hundred twenty-nine".