68416380 has 192 divisors, whose sum is σ = 226652160. Its totient is φ = 17107200.

The previous prime is 68416363. The next prime is 68416429. The reversal of 68416380 is 8361486.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1021107 + ... + 1021173.

It is an arithmetic number, because the mean of its divisors is an integer number (1180480).

Almost surely, 2^68416380 is an apocalyptic number.

68416380 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 68416380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113326080).

68416380 is an abundant number, since it is smaller than the sum of its proper divisors (158235780).

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

68416380 is a wasteful number, since it uses less digits than its factorization.

68416380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 68416380 is about 8271.4194670564. The cubic root of 68416380 is about 408.9969133540.

The spelling of 68416380 in words is "sixty-eight million, four hundred sixteen thousand, three hundred eighty".