68028144 has 20 divisors (see below), whose sum is σ = 175739496. Its totient is φ = 22676032.

The previous prime is 68028131. The next prime is 68028161. The reversal of 68028144 is 44182086.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 708579 + ... + 708674.

Almost surely, 2^68028144 is an apocalyptic number.

It is an amenable number.

68028144 is an abundant number, since it is smaller than the sum of its proper divisors (107711352).

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

68028144 is a wasteful number, since it uses less digits than its factorization.

68028144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417264 (or 1417258 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 68028144 is about 8247.9175553590. The cubic root of 68028144 is about 408.2218132587.

The spelling of 68028144 in words is "sixty-eight million, twenty-eight thousand, one hundred forty-four".