68744544 has 48 divisors (see below), whose sum is σ = 196862400. Its totient is φ = 20831360.

The previous prime is 68744537. The next prime is 68744581. The reversal of 68744544 is 44544786.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 68744496 and 68744505.

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 7 ways as a sum of consecutive naturals, for example, 31494 + ... + 33605.

It is an arithmetic number, because the mean of its divisors is an integer number (4101300).

Almost surely, 2^68744544 is an apocalyptic number.

It is an amenable number.

68744544 is an abundant number, since it is smaller than the sum of its proper divisors (128117856).

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

68744544 is a wasteful number, since it uses less digits than its factorization.

68744544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65123 (or 65115 counting only the distinct ones).

The product of its digits is 430080, while the sum is 42.

The square root of 68744544 is about 8291.2329601815. The cubic root of 68744544 is about 409.6497981243.

The spelling of 68744544 in words is "sixty-eight million, seven hundred forty-four thousand, five hundred forty-four".