68738944 has 16 divisors (see below), whose sum is σ = 136941120. Its totient is φ = 34369408.

The previous prime is 68738911. The next prime is 68738951. The reversal of 68738944 is 44983786.

It is a tau number, because it is divible by the number of its divisors (16).

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 as a sum of consecutive naturals, namely, 268384 + ... + 268639.

It is an arithmetic number, because the mean of its divisors is an integer number (8558820).

Almost surely, 2^68738944 is an apocalyptic number.

68738944 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

68738944 is a deficient number, since it is larger than the sum of its proper divisors (68202176).

68738944 is an equidigital number, since it uses as much as digits as its factorization.

68738944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537037 (or 537025 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 49.

The square root of 68738944 is about 8290.8952471974. The cubic root of 68738944 is about 409.6386743268.

The spelling of 68738944 in words is "sixty-eight million, seven hundred thirty-eight thousand, nine hundred forty-four".