68844960 has 72 divisors (see below), whose sum is σ = 234938340. Its totient is φ = 18358272.

The previous prime is 68844959. The next prime is 68845001. The reversal of 68844960 is 6944886.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 61027344 + 7817616 = 7812^2 + 2796^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22465 + ... + 25344.

Almost surely, 2^68844960 is an apocalyptic number.

68844960 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68844960 is an abundant number, since it is smaller than the sum of its proper divisors (166093380).

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

68844960 is a wasteful number, since it uses less digits than its factorization.

68844960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47830 (or 47819 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 68844960 is about 8297.2863033645. The cubic root of 68844960 is about 409.8491612494.

The spelling of 68844960 in words is "sixty-eight million, eight hundred forty-four thousand, nine hundred sixty".