16440827 has 6 divisors (see below), whose sum is σ = 17802972. Its totient is φ = 15175992.

The previous prime is 16440811. The next prime is 16440829. The reversal of 16440827 is 72804461.

It is not a de Polignac number, because 16440827 - 2⁴ = 16440811 is a prime.

It is a super-3 number, since 3×16440827³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16440793 and 16440802.

It is not an unprimeable number, because it can be changed into a prime (16440829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48473 + ... + 48810.

It is an arithmetic number, because the mean of its divisors is an integer number (2967162).

Almost surely, 2^16440827 is an apocalyptic number.

16440827 is a deficient number, since it is larger than the sum of its proper divisors (1362145).

16440827 is an equidigital number, since it uses as much as digits as its factorization.

16440827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97309 (or 97296 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 16440827 is about 4054.7289675144. The cubic root of 16440827 is about 254.2774728303.

The spelling of 16440827 in words is "sixteen million, four hundred forty thousand, eight hundred twenty-seven".