42068355 has 16 divisors (see below), whose sum is σ = 76925184. Its totient is φ = 19231200.

The previous prime is 42068339. The next prime is 42068359. The reversal of 42068355 is 55386024.

It is not a de Polignac number, because 42068355 - 2⁴ = 42068339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42068359) 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, 200221 + ... + 200430.

It is an arithmetic number, because the mean of its divisors is an integer number (4807824).

Almost surely, 2^42068355 is an apocalyptic number.

42068355 is a deficient number, since it is larger than the sum of its proper divisors (34856829).

42068355 is a wasteful number, since it uses less digits than its factorization.

42068355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400666.

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

The square root of 42068355 is about 6486.0122571577. The cubic root of 42068355 is about 347.7911367249.

It can be divided in two parts, 4206 and 8355, that added together give a triangular number (12561 = T₁₅₈).

The spelling of 42068355 in words is "forty-two million, sixty-eight thousand, three hundred fifty-five".