68348416 has 20 divisors (see below), whose sum is σ = 136564362. Its totient is φ = 34173952.

The previous prime is 68348383. The next prime is 68348419. The reversal of 68348416 is 61484386.

It can be written as a sum of positive squares in only one way, i.e., 47554816 + 20793600 = 6896^2 + 4560^2 .

It is not an unprimeable number, because it can be changed into a prime (68348419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66235 + ... + 67258.

Almost surely, 2^68348416 is an apocalyptic number.

It is an amenable number.

68348416 is a deficient number, since it is larger than the sum of its proper divisors (68215946).

68348416 is an equidigital number, since it uses as much as digits as its factorization.

68348416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133511 (or 133495 counting only the distinct ones).

The product of its digits is 110592, while the sum is 40.

The square root of 68348416 is about 8267.3100824875. The cubic root of 68348416 is about 408.8614376306.

The spelling of 68348416 in words is "sixty-eight million, three hundred forty-eight thousand, four hundred sixteen".