68009416 has 16 divisors (see below), whose sum is σ = 128833740. Its totient is φ = 33653760.

The previous prime is 68009399. The next prime is 68009419. The reversal of 68009416 is 61490086.

It can be written as a sum of positive squares in 2 ways, for example, as 60000516 + 8008900 = 7746^2 + 2830^2 .

It is a super-2 number, since 2×68009416² = 9250561329322112, which contains 22 as substring.

It is a plaindrome in base 13.

It is a zygodrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (68009419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43045 + ... + 44596.

Almost surely, 2^68009416 is an apocalyptic number.

It is an amenable number.

68009416 is a deficient number, since it is larger than the sum of its proper divisors (60824324).

68009416 is a wasteful number, since it uses less digits than its factorization.

68009416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87744 (or 87740 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 68009416 is about 8246.7821603338. The cubic root of 68009416 is about 408.1843489617.

The spelling of 68009416 in words is "sixty-eight million, nine thousand, four hundred sixteen".