68348280 has 256 divisors, whose sum is σ = 275788800. Its totient is φ = 13086720.

The previous prime is 68348261. The next prime is 68348281. The reversal of 68348280 is 8284386.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Saint-Exupery number, since it is equal to the product of the sides of a Pythagorean triangle: 569 × 231 × 520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68348281) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 119836 + ... + 120404.

It is an arithmetic number, because the mean of its divisors is an integer number (1077300).

Almost surely, 2^68348280 is an apocalyptic number.

68348280 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 68348280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137894400).

68348280 is an abundant number, since it is smaller than the sum of its proper divisors (207440520).

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

68348280 is a wasteful number, since it uses less digits than its factorization.

68348280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614 (or 610 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 68348280 is about 8267.3018573172. The cubic root of 68348280 is about 408.8611664456.

The spelling of 68348280 in words is "sixty-eight million, three hundred forty-eight thousand, two hundred eighty".