68616460 has 48 divisors (see below), whose sum is σ = 159802272. Its totient is φ = 24537600.

The previous prime is 68616439. The next prime is 68616461. The reversal of 68616460 is 6461686.

It is not an unprimeable number, because it can be changed into a prime (68616461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10864 + ... + 15976.

It is an arithmetic number, because the mean of its divisors is an integer number (3329214).

Almost surely, 2^68616460 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 68616460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79901136).

68616460 is an abundant number, since it is smaller than the sum of its proper divisors (91185812).

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

68616460 is a wasteful number, since it uses less digits than its factorization.

68616460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5194 (or 5192 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 68616460 is about 8283.5052966724. The cubic root of 68616460 is about 409.3952217737.

The spelling of 68616460 in words is "sixty-eight million, six hundred sixteen thousand, four hundred sixty".