68256480 has 96 divisors (see below), whose sum is σ = 220074624. Its totient is φ = 17773056.

The previous prime is 68256473. The next prime is 68256497. The reversal of 68256480 is 8465286.

It is a tau number, because it is divible by the number of its divisors (96).

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, 18987 + ... + 22293.

It is an arithmetic number, because the mean of its divisors is an integer number (2292444).

Almost surely, 2^68256480 is an apocalyptic number.

68256480 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 68256480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110037312).

68256480 is an abundant number, since it is smaller than the sum of its proper divisors (151818144).

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

68256480 is a wasteful number, since it uses less digits than its factorization.

68256480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3368 (or 3360 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 68256480 is about 8261.7479990617. The cubic root of 68256480 is about 408.6780344457.

The spelling of 68256480 in words is "sixty-eight million, two hundred fifty-six thousand, four hundred eighty".