68203390 has 8 divisors (see below), whose sum is σ = 122766120. Its totient is φ = 27281352.

The previous prime is 68203367. The next prime is 68203391. The reversal of 68203390 is 9330286.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68203391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3410160 + ... + 3410179.

It is an arithmetic number, because the mean of its divisors is an integer number (15345765).

Almost surely, 2^68203390 is an apocalyptic number.

68203390 is a deficient number, since it is larger than the sum of its proper divisors (54562730).

68203390 is a wasteful number, since it uses less digits than its factorization.

68203390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6820346.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 68203390 is about 8258.5343736041. The cubic root of 68203390 is about 408.5720501517.

The spelling of 68203390 in words is "sixty-eight million, two hundred three thousand, three hundred ninety".