16440983 has 8 divisors (see below), whose sum is σ = 17814048. Its totient is φ = 15083424.

The previous prime is 16440979. The next prime is 16441003. The reversal of 16440983 is 38904461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16440983 - 2² = 16440979 is a prime.

It is a super-3 number, since 3×16440983³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16440923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1616 + ... + 5957.

It is an arithmetic number, because the mean of its divisors is an integer number (2226756).

Almost surely, 2^16440983 is an apocalyptic number.

16440983 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16440983 is a deficient number, since it is larger than the sum of its proper divisors (1373065).

16440983 is a wasteful number, since it uses less digits than its factorization.

16440983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7753.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 16440983 is about 4054.7482042662. The cubic root of 16440983 is about 254.2782770713.

The spelling of 16440983 in words is "sixteen million, four hundred forty thousand, nine hundred eighty-three".