68305460 has 48 divisors (see below), whose sum is σ = 146546064. Its totient is φ = 26738688.

The previous prime is 68305459. The next prime is 68305463. The reversal of 68305460 is 6450386.

It can be written as a sum of positive squares in 8 ways, for example, as 5134756 + 63170704 = 2266^2 + 7948^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68305463) 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, 265652 + ... + 265908.

It is an arithmetic number, because the mean of its divisors is an integer number (3053043).

Almost surely, 2^68305460 is an apocalyptic number.

It is an amenable number.

68305460 is an abundant number, since it is smaller than the sum of its proper divisors (78240604).

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

68305460 is a wasteful number, since it uses less digits than its factorization.

68305460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500 (or 498 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 68305460 is about 8264.7117312100. The cubic root of 68305460 is about 408.7757651619.

The spelling of 68305460 in words is "sixty-eight million, three hundred five thousand, four hundred sixty".