68352405 has 32 divisors (see below), whose sum is σ = 125591040. Its totient is φ = 31394880.

The previous prime is 68352353. The next prime is 68352421. The reversal of 68352405 is 50425386.

It is not a de Polignac number, because 68352405 - 2⁶ = 68352341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

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 31 ways as a sum of consecutive naturals, for example, 7767 + ... + 14036.

It is an arithmetic number, because the mean of its divisors is an integer number (3924720).

Almost surely, 2^68352405 is an apocalyptic number.

It is an amenable number.

68352405 is a deficient number, since it is larger than the sum of its proper divisors (57238635).

68352405 is a wasteful number, since it uses less digits than its factorization.

68352405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21841.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 68352405 is about 8267.5513303517. The cubic root of 68352405 is about 408.8693915654.

The spelling of 68352405 in words is "sixty-eight million, three hundred fifty-two thousand, four hundred five".