68940518 has 8 divisors (see below), whose sum is σ = 103446120. Its totient is φ = 34458480.

The previous prime is 68940517. The next prime is 68940523. The reversal of 68940518 is 81504986.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68940517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7658 + ... + 14018.

It is an arithmetic number, because the mean of its divisors is an integer number (12930765).

Almost surely, 2^68940518 is an apocalyptic number.

68940518 is a deficient number, since it is larger than the sum of its proper divisors (34505602).

68940518 is a wasteful number, since it uses less digits than its factorization.

68940518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11782.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 68940518 is about 8303.0426953015. The cubic root of 68940518 is about 410.0386995000.

The spelling of 68940518 in words is "sixty-eight million, nine hundred forty thousand, five hundred eighteen".