16040075 has 18 divisors (see below), whose sum is σ = 20421684. Its totient is φ = 12497520.

The previous prime is 16040069. The next prime is 16040077. The reversal of 16040075 is 57004061.

It is not a de Polignac number, because 16040075 - 2¹² = 16035979 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 16040075.

It is not an unprimeable number, because it can be changed into a prime (16040077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 46052 + ... + 46398.

It is an arithmetic number, because the mean of its divisors is an integer number (1134538).

Almost surely, 2^16040075 is an apocalyptic number.

16040075 is a deficient number, since it is larger than the sum of its proper divisors (4381609).

16040075 is an equidigital number, since it uses as much as digits as its factorization.

16040075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 16040075 is about 4005.0062421924. The cubic root of 16040075 is about 252.1944151441.

The spelling of 16040075 in words is "sixteen million, forty thousand, seventy-five".