68468418 has 24 divisors (see below), whose sum is σ = 157075308. Its totient is φ = 21480192.

The previous prime is 68468399. The next prime is 68468423. The reversal of 68468418 is 81486486.

It can be written as a sum of positive squares in 2 ways, for example, as 68112009 + 356409 = 8253^2 + 597^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111571 + ... + 112182.

Almost surely, 2^68468418 is an apocalyptic number.

68468418 is an abundant number, since it is smaller than the sum of its proper divisors (88606890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68468418 is a wasteful number, since it uses less digits than its factorization.

68468418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223778 (or 223775 counting only the distinct ones).

The product of its digits is 294912, while the sum is 45.

The square root of 68468418 is about 8274.5645202633. The cubic root of 68468418 is about 409.1005824245.

It can be divided in two parts, 68468 and 418, that added together give a palindrome (68886).

The spelling of 68468418 in words is "sixty-eight million, four hundred sixty-eight thousand, four hundred eighteen".