68392406 has 8 divisors (see below), whose sum is σ = 103741560. Its totient is φ = 33811888.

The previous prime is 68392399. The next prime is 68392427. The reversal of 68392406 is 60429386.

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

It is a self number, because there is not a number n which added to its sum of digits gives 68392406.

It is a congruent number.

It is an unprimeable number.

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, 191936 + ... + 192291.

It is an arithmetic number, because the mean of its divisors is an integer number (12967695).

Almost surely, 2^68392406 is an apocalyptic number.

68392406 is a deficient number, since it is larger than the sum of its proper divisors (35349154).

68392406 is a wasteful number, since it uses less digits than its factorization.

68392406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384318.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 68392406 is about 8269.9701329570. The cubic root of 68392406 is about 408.9491351391.

The spelling of 68392406 in words is "sixty-eight million, three hundred ninety-two thousand, four hundred six".