68916480 has 144 divisors (see below), whose sum is σ = 223401024. Its totient is φ = 18104320.

The previous prime is 68916473. The next prime is 68916509. The reversal of 68916480 is 8461986.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 502972 + ... + 503108.

It is an arithmetic number, because the mean of its divisors is an integer number (1551396).

Almost surely, 2^68916480 is an apocalyptic number.

68916480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68916480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111700512).

68916480 is an abundant number, since it is smaller than the sum of its proper divisors (154484544).

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

68916480 is a wasteful number, since it uses less digits than its factorization.

68916480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 68916480 is about 8301.5950274631. The cubic root of 68916480 is about 409.9910368852.

It can be divided in two parts, 68916 and 480, that added together give a palindrome (69396).

The spelling of 68916480 in words is "sixty-eight million, nine hundred sixteen thousand, four hundred eighty".