68368490 has 16 divisors (see below), whose sum is σ = 123265152. Its totient is φ = 27302544.

The previous prime is 68368483. The next prime is 68368493. The reversal of 68368490 is 9486386.

It is not an unprimeable number, because it can be changed into a prime (68368493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1187 + ... + 11753.

It is an arithmetic number, because the mean of its divisors is an integer number (7704072).

Almost surely, 2^68368490 is an apocalyptic number.

68368490 is a deficient number, since it is larger than the sum of its proper divisors (54896662).

68368490 is a wasteful number, since it uses less digits than its factorization.

68368490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11221.

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 68368490 is about 8268.5240520906. The cubic root of 68368490 is about 408.9014613872.

The spelling of 68368490 in words is "sixty-eight million, three hundred sixty-eight thousand, four hundred ninety".