68281002 has 32 divisors (see below), whose sum is σ = 152006400. Its totient is φ = 22719744.

The previous prime is 68281001. The next prime is 68281009. The reversal of 68281002 is 20018286.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (68281001) 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 15 ways as a sum of consecutive naturals, for example, 55498 + ... + 56714.

It is an arithmetic number, because the mean of its divisors is an integer number (4750200).

Almost surely, 2^68281002 is an apocalyptic number.

68281002 is an abundant number, since it is smaller than the sum of its proper divisors (83725398).

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

68281002 is a wasteful number, since it uses less digits than its factorization.

68281002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2267 (or 2261 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 68281002 is about 8263.2319342979. The cubic root of 68281002 is about 408.7269694961.

Adding to 68281002 its reverse (20018286), we get a palindrome (88299288).

The spelling of 68281002 in words is "sixty-eight million, two hundred eighty-one thousand, two".