68584144 has 20 divisors (see below), whose sum is σ = 136124100. Its totient is φ = 33455360.

The previous prime is 68584123. The next prime is 68584147. The reversal of 68584144 is 44148586.

It can be written as a sum of positive squares in 2 ways, for example, as 12334144 + 56250000 = 3512^2 + 7500^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68584097 and 68584106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68584147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51619 + ... + 52930.

It is an arithmetic number, because the mean of its divisors is an integer number (6806205).

Almost surely, 2^68584144 is an apocalyptic number.

It is an amenable number.

68584144 is a deficient number, since it is larger than the sum of its proper divisors (67539956).

68584144 is a wasteful number, since it uses less digits than its factorization.

68584144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104598 (or 104592 counting only the distinct ones).

The product of its digits is 122880, while the sum is 40.

The square root of 68584144 is about 8281.5544434605. The cubic root of 68584144 is about 409.3309413105.

The spelling of 68584144 in words is "sixty-eight million, five hundred eighty-four thousand, one hundred forty-four".