68468736 has 120 divisors (see below), whose sum is σ = 209708800. Its totient is φ = 19464192.

The previous prime is 68468731. The next prime is 68468783. The reversal of 68468736 is 63786486.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68468731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343965 + ... + 344163.

Almost surely, 2^68468736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68468736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104854400).

68468736 is an abundant number, since it is smaller than the sum of its proper divisors (141240064).

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

68468736 is an equidigital number, since it uses as much as digits as its factorization.

68468736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237 (or 211 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 48.

The square root of 68468736 is about 8274.5837357537. The cubic root of 68468736 is about 409.1012157762.

The spelling of 68468736 in words is "sixty-eight million, four hundred sixty-eight thousand, seven hundred thirty-six".