68812380 has 144 divisors (see below), whose sum is σ = 256960704. Its totient is φ = 14515200.

The previous prime is 68812369. The next prime is 68812421. The reversal of 68812380 is 8321886.

68812380 = T₁₁₈₄ + T₁₁₈₅ + ... + T₁₂₇₄.

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 47 ways as a sum of consecutive naturals, for example, 14280 + ... + 18480.

Almost surely, 2^68812380 is an apocalyptic number.

68812380 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 68812380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128480352).

68812380 is an abundant number, since it is smaller than the sum of its proper divisors (188148324).

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

68812380 is a wasteful number, since it uses less digits than its factorization.

68812380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4236 (or 4231 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 68812380 is about 8295.3227785301. The cubic root of 68812380 is about 409.7844990839.

It can be divided in two parts, 6881 and 2380, that added together give a cube (9261 = 21³).

The spelling of 68812380 in words is "sixty-eight million, eight hundred twelve thousand, three hundred eighty".