68401344 has 112 divisors (see below), whose sum is σ = 199704960. Its totient is φ = 20490240.

The previous prime is 68401327. The next prime is 68401351. The reversal of 68401344 is 44310486.

It is a super-2 number, since 2×68401344² = 9357487722012672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 293452 + ... + 293684.

It is an arithmetic number, because the mean of its divisors is an integer number (1783080).

Almost surely, 2^68401344 is an apocalyptic number.

68401344 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68401344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99852480).

68401344 is an abundant number, since it is smaller than the sum of its proper divisors (131303616).

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

68401344 is a wasteful number, since it uses less digits than its factorization.

68401344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398 (or 388 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 68401344 is about 8270.5105041950. The cubic root of 68401344 is about 408.9669491449.

The spelling of 68401344 in words is "sixty-eight million, four hundred one thousand, three hundred forty-four".