68925280 has 24 divisors (see below), whose sum is σ = 162836352. Its totient is φ = 27570048.

The previous prime is 68925271. The next prime is 68925289. The reversal of 68925280 is 8252986.

It is an interprime number because it is at equal distance from previous prime (68925271) and next prime (68925289).

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68925289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215232 + ... + 215551.

It is an arithmetic number, because the mean of its divisors is an integer number (6784848).

Almost surely, 2^68925280 is an apocalyptic number.

It is an amenable number.

68925280 is an abundant number, since it is smaller than the sum of its proper divisors (93911072).

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

68925280 is a wasteful number, since it uses less digits than its factorization.

68925280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430798 (or 430790 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 68925280 is about 8302.1250291717. The cubic root of 68925280 is about 410.0084868360.

The spelling of 68925280 in words is "sixty-eight million, nine hundred twenty-five thousand, two hundred eighty".