68280472 has 64 divisors (see below), whose sum is σ = 143740800. Its totient is φ = 30205440.

The previous prime is 68280467. The next prime is 68280473. The reversal of 68280472 is 27408286.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68280473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298054 + ... + 298282.

It is an arithmetic number, because the mean of its divisors is an integer number (2245950).

Almost surely, 2^68280472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68280472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71870400).

68280472 is an abundant number, since it is smaller than the sum of its proper divisors (75460328).

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

68280472 is a wasteful number, since it uses less digits than its factorization.

68280472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356 (or 352 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 68280472 is about 8263.1998644593. The cubic root of 68280472 is about 408.7259119747.

The spelling of 68280472 in words is "sixty-eight million, two hundred eighty thousand, four hundred seventy-two".