16240065 has 16 divisors (see below), whose sum is σ = 26174400. Its totient is φ = 8597952.

The previous prime is 16240061. The next prime is 16240069. The reversal of 16240065 is 56004261.

It is an interprime number because it is at equal distance from previous prime (16240061) and next prime (16240069).

It is not a de Polignac number, because 16240065 - 2² = 16240061 is a prime.

It is a super-2 number, since 2×16240065² = 527479422408450, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16240061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1810 + ... + 5979.

It is an arithmetic number, because the mean of its divisors is an integer number (1635900).

Almost surely, 2^16240065 is an apocalyptic number.

16240065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16240065 is a deficient number, since it is larger than the sum of its proper divisors (9934335).

16240065 is a wasteful number, since it uses less digits than its factorization.

16240065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7936.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 16240065 is about 4029.8964006535. The cubic root of 16240065 is about 253.2382212590.

The spelling of 16240065 in words is "sixteen million, two hundred forty thousand, sixty-five".