68242005 has 96 divisors (see below), whose sum is σ = 135862272. Its totient is φ = 31449600.

The previous prime is 68242003. The next prime is 68242039. The reversal of 68242005 is 50024286.

It is not a de Polignac number, because 68242005 - 2¹ = 68242003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68242005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68242003) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 961120 + ... + 961190.

It is an arithmetic number, because the mean of its divisors is an integer number (1415232).

Almost surely, 2^68242005 is an apocalyptic number.

68242005 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

68242005 is a deficient number, since it is larger than the sum of its proper divisors (67620267).

68242005 is a wasteful number, since it uses less digits than its factorization.

68242005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 68242005 is about 8260.8719273452. The cubic root of 68242005 is about 408.6491432558.

The spelling of 68242005 in words is "sixty-eight million, two hundred forty-two thousand, five".