68578380 has 96 divisors (see below), whose sum is σ = 229790400. Its totient is φ = 16879104.

The previous prime is 68578373. The next prime is 68578381. The reversal of 68578380 is 8387586.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (68578381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2136 + ... + 11904.

It is an arithmetic number, because the mean of its divisors is an integer number (2393650).

Almost surely, 2^68578380 is an apocalyptic number.

68578380 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 68578380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114895200).

68578380 is an abundant number, since it is smaller than the sum of its proper divisors (161212020).

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

68578380 is a wasteful number, since it uses less digits than its factorization.

68578380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9800 (or 9792 counting only the distinct ones).

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

The square root of 68578380 is about 8281.2064338477. The cubic root of 68578380 is about 409.3194738900.

The spelling of 68578380 in words is "sixty-eight million, five hundred seventy-eight thousand, three hundred eighty".