16320243 has 16 divisors (see below), whose sum is σ = 22730400. Its totient is φ = 10402560.

The previous prime is 16320223. The next prime is 16320253. The reversal of 16320243 is 34202361.

It is a happy number.

It is not a de Polignac number, because 16320243 - 2⁹ = 16319731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16320223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8623 + ... + 10343.

It is an arithmetic number, because the mean of its divisors is an integer number (1420650).

Almost surely, 2^16320243 is an apocalyptic number.

16320243 is a deficient number, since it is larger than the sum of its proper divisors (6410157).

16320243 is a wasteful number, since it uses less digits than its factorization.

16320243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1862.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 16320243 is about 4039.8320509645. The cubic root of 16320243 is about 253.6542871488.

The spelling of 16320243 in words is "sixteen million, three hundred twenty thousand, two hundred forty-three".