16040243 has 4 divisors (see below), whose sum is σ = 16075800. Its totient is φ = 16004688.

The previous prime is 16040221. The next prime is 16040251. The reversal of 16040243 is 34204061.

It is a happy number.

16040243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 16040243 - 2¹² = 16036147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16048243) 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, 17093 + ... + 18006.

It is an arithmetic number, because the mean of its divisors is an integer number (4018950).

Almost surely, 2^16040243 is an apocalyptic number.

16040243 is a deficient number, since it is larger than the sum of its proper divisors (35557).

16040243 is an equidigital number, since it uses as much as digits as its factorization.

16040243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35556.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 16040243 is about 4005.0272158876. The cubic root of 16040243 is about 252.1952956162.

The spelling of 16040243 in words is "sixteen million, forty thousand, two hundred forty-three".