68652144 has 80 divisors (see below), whose sum is σ = 214986240. Its totient is φ = 20802240.

The previous prime is 68652127. The next prime is 68652151. The reversal of 68652144 is 44125686.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 68652099 and 68652108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2472 + ... + 11975.

It is an arithmetic number, because the mean of its divisors is an integer number (2687328).

Almost surely, 2^68652144 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 68652144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107493120).

68652144 is an abundant number, since it is smaller than the sum of its proper divisors (146334096).

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

68652144 is a wasteful number, since it uses less digits than its factorization.

68652144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14475 (or 14463 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 68652144 is about 8285.6589357757. The cubic root of 68652144 is about 409.4661781563.

It can be divided in two parts, 6865 and 2144, that added together give a palindrome (9009).

The spelling of 68652144 in words is "sixty-eight million, six hundred fifty-two thousand, one hundred forty-four".