68070144 has 72 divisors (see below), whose sum is σ = 184262512. Its totient is φ = 22302720.

The previous prime is 68070143. The next prime is 68070169. The reversal of 68070144 is 44107086.

It is not an unprimeable number, because it can be changed into a prime (68070143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46122 + ... + 47574.

Almost surely, 2^68070144 is an apocalyptic number.

68070144 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 68070144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92131256).

68070144 is an abundant number, since it is smaller than the sum of its proper divisors (116192368).

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

68070144 is a wasteful number, since it uses less digits than its factorization.

68070144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533 (or 1519 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 68070144 is about 8250.4632597206. The cubic root of 68070144 is about 408.3058068723.

The spelling of 68070144 in words is "sixty-eight million, seventy thousand, one hundred forty-four".