68396580 has 144 divisors (see below), whose sum is σ = 249674880. Its totient is φ = 14805504.

The previous prime is 68396567. The next prime is 68396591. The reversal of 68396580 is 8569386.

68396580 is a `hidden beast` number, since 68 + 3 + 9 + 6 + 580 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22512 + ... + 25368.

Almost surely, 2^68396580 is an apocalyptic number.

68396580 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 68396580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124837440).

68396580 is an abundant number, since it is smaller than the sum of its proper divisors (181278300).

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

68396580 is a wasteful number, since it uses less digits than its factorization.

68396580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2898 (or 2893 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 68396580 is about 8270.2224879383. Note that the first 3 decimals coincide. The cubic root of 68396580 is about 408.9574543812.

The spelling of 68396580 in words is "sixty-eight million, three hundred ninety-six thousand, five hundred eighty".