16464243 has 4 divisors (see below), whose sum is σ = 21952328. Its totient is φ = 10976160.

The previous prime is 16464229. The next prime is 16464263. The reversal of 16464243 is 34246461.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 16464243 - 2⁶ = 16464179 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16464243.

It is not an unprimeable number, because it can be changed into a prime (16464263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2744038 + ... + 2744043.

It is an arithmetic number, because the mean of its divisors is an integer number (5488082).

Almost surely, 2^16464243 is an apocalyptic number.

16464243 is a deficient number, since it is larger than the sum of its proper divisors (5488085).

16464243 is an equidigital number, since it uses as much as digits as its factorization.

16464243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5488084.

The product of its digits is 13824, while the sum is 30.

The square root of 16464243 is about 4057.6154327388. The cubic root of 16464243 is about 254.3981345785.

The spelling of 16464243 in words is "sixteen million, four hundred sixty-four thousand, two hundred forty-three".