68257344 has 28 divisors (see below), whose sum is σ = 180598064. Its totient is φ = 22752384.

The previous prime is 68257339. The next prime is 68257349. The reversal of 68257344 is 44375286.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68257339) and next prime (68257349).

It is not an unprimeable number, because it can be changed into a prime (68257349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177562 + ... + 177945.

Almost surely, 2^68257344 is an apocalyptic number.

68257344 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

68257344 is an abundant number, since it is smaller than the sum of its proper divisors (112340720).

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

68257344 is a wasteful number, since it uses less digits than its factorization.

68257344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355522 (or 355512 counting only the distinct ones).

The product of its digits is 161280, while the sum is 39.

The square root of 68257344 is about 8261.8002880728. The cubic root of 68257344 is about 408.6797588062.

The spelling of 68257344 in words is "sixty-eight million, two hundred fifty-seven thousand, three hundred forty-four".