68357880 has 96 divisors (see below), whose sum is σ = 223236000. Its totient is φ = 18140928.

The previous prime is 68357879. The next prime is 68357899. The reversal of 68357880 is 8875386.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113821 + ... + 114419.

It is an arithmetic number, because the mean of its divisors is an integer number (2325375).

Almost surely, 2^68357880 is an apocalyptic number.

68357880 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 68357880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111618000).

68357880 is an abundant number, since it is smaller than the sum of its proper divisors (154878120).

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

68357880 is a wasteful number, since it uses less digits than its factorization.

68357880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933 (or 926 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 68357880 is about 8267.8824374806. The cubic root of 68357880 is about 408.8803080316.

The spelling of 68357880 in words is "sixty-eight million, three hundred fifty-seven thousand, eight hundred eighty".