16340245 has 4 divisors (see below), whose sum is σ = 19608300. Its totient is φ = 13072192.

The previous prime is 16340243. The next prime is 16340249. The reversal of 16340245 is 54204361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54204361 = 409 ⋅132529.

It can be written as a sum of positive squares in 2 ways, for example, as 3538161 + 12802084 = 1881^2 + 3578^2 .

It is a cyclic number.

It is not a de Polignac number, because 16340245 - 2¹ = 16340243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16340243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1634020 + ... + 1634029.

It is an arithmetic number, because the mean of its divisors is an integer number (4902075).

Almost surely, 2^16340245 is an apocalyptic number.

It is an amenable number.

16340245 is a deficient number, since it is larger than the sum of its proper divisors (3268055).

16340245 is an equidigital number, since it uses as much as digits as its factorization.

16340245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3268054.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 16340245 is about 4042.3068908731. The cubic root of 16340245 is about 253.7578706093.

The spelling of 16340245 in words is "sixteen million, three hundred forty thousand, two hundred forty-five".