68460644 has 36 divisors (see below), whose sum is σ = 142624944. Its totient is φ = 28654416.

The previous prime is 68460599. The next prime is 68460653. The reversal of 68460644 is 44606486.

It is a junction number, because it is equal to n+sod(n) for n = 68460598 and 68460607.

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, 4367 + ... + 12489.

It is an arithmetic number, because the mean of its divisors is an integer number (3961804).

Almost surely, 2^68460644 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 68460644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71312472).

68460644 is an abundant number, since it is smaller than the sum of its proper divisors (74164300).

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

68460644 is a wasteful number, since it uses less digits than its factorization.

68460644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8184 (or 8175 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 38.

The square root of 68460644 is about 8274.0947541106. The cubic root of 68460644 is about 409.0850985542.

The spelling of 68460644 in words is "sixty-eight million, four hundred sixty thousand, six hundred forty-four".