16440601 has 2 divisors, whose sum is σ = 16440602. Its totient is φ = 16440600.

The previous prime is 16440583. The next prime is 16440623. The reversal of 16440601 is 10604461.

It is an a-pointer prime, because the next prime (16440623) can be obtained adding 16440601 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15808576 + 632025 = 3976^2 + 795^2 .

It is a cyclic number.

It is not a de Polignac number, because 16440601 - 2⁹ = 16440089 is a prime.

It is a super-3 number, since 3×16440601³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16440901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8220300 + 8220301.

It is an arithmetic number, because the mean of its divisors is an integer number (8220301).

Almost surely, 2^16440601 is an apocalyptic number.

It is an amenable number.

16440601 is a deficient number, since it is larger than the sum of its proper divisors (1).

16440601 is an equidigital number, since it uses as much as digits as its factorization.

16440601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 16440601 is about 4054.7010987248. The cubic root of 16440601 is about 254.2763077030.

The spelling of 16440601 in words is "sixteen million, four hundred forty thousand, six hundred one".