68264340 has 96 divisors (see below), whose sum is σ = 202849920. Its totient is φ = 17104896.

The previous prime is 68264311. The next prime is 68264341. The reversal of 68264340 is 4346286.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68264341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 265492 + ... + 265748.

It is an arithmetic number, because the mean of its divisors is an integer number (2113020).

Almost surely, 2^68264340 is an apocalyptic number.

68264340 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 68264340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101424960).

68264340 is an abundant number, since it is smaller than the sum of its proper divisors (134585580).

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

68264340 is a wasteful number, since it uses less digits than its factorization.

68264340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 68264340 is about 8262.2236716274. The cubic root of 68264340 is about 408.6937208003.

The spelling of 68264340 in words is "sixty-eight million, two hundred sixty-four thousand, three hundred forty".