16240429 has 2 divisors, whose sum is σ = 16240430. Its totient is φ = 16240428.

The previous prime is 16240417. The next prime is 16240481. The reversal of 16240429 is 92404261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12638025 + 3602404 = 3555^2 + 1898^2 .

It is a cyclic number.

It is not a de Polignac number, because 16240429 - 2⁹ = 16239917 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 16240397 and 16240406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16240489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8120214 + 8120215.

It is an arithmetic number, because the mean of its divisors is an integer number (8120215).

Almost surely, 2^16240429 is an apocalyptic number.

It is an amenable number.

16240429 is a deficient number, since it is larger than the sum of its proper divisors (1).

16240429 is an equidigital number, since it uses as much as digits as its factorization.

16240429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 16240429 is about 4029.9415628517. The cubic root of 16240429 is about 253.2401132470.

The spelling of 16240429 in words is "sixteen million, two hundred forty thousand, four hundred twenty-nine".