68606144 has 28 divisors (see below), whose sum is σ = 138455400. Its totient is φ = 33719808.

The previous prime is 68606143. The next prime is 68606147. The reversal of 68606144 is 44160686.

It is not an unprimeable number, because it can be changed into a prime (68606143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5309 + ... + 12860.

Almost surely, 2^68606144 is an apocalyptic number.

68606144 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

68606144 is an abundant number, since it is smaller than the sum of its proper divisors (69849256).

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

68606144 is a wasteful number, since it uses less digits than its factorization.

68606144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18240 (or 18230 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 68606144 is about 8282.8825900166. The cubic root of 68606144 is about 409.3747041856.

The spelling of 68606144 in words is "sixty-eight million, six hundred six thousand, one hundred forty-four".