68012280 has 192 divisors, whose sum is σ = 255752640. Its totient is φ = 15353856.

The previous prime is 68012251. The next prime is 68012281. The reversal of 68012280 is 8221086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68012281) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 345142 + ... + 345338.

It is an arithmetic number, because the mean of its divisors is an integer number (1332045).

Almost surely, 2^68012280 is an apocalyptic number.

68012280 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 68012280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127876320).

68012280 is an abundant number, since it is smaller than the sum of its proper divisors (187740360).

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

68012280 is a wasteful number, since it uses less digits than its factorization.

68012280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 68012280 is about 8246.9558019914. The cubic root of 68012280 is about 408.1900786759.

The spelling of 68012280 in words is "sixty-eight million, twelve thousand, two hundred eighty".