68442270 has 32 divisors (see below), whose sum is σ = 176897952. Its totient is φ = 16847232.

The previous prime is 68442251. The next prime is 68442271. The reversal of 68442270 is 7224486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68442271) 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, 87357 + ... + 88136.

It is an arithmetic number, because the mean of its divisors is an integer number (5528061).

Almost surely, 2^68442270 is an apocalyptic number.

68442270 is an abundant number, since it is smaller than the sum of its proper divisors (108455682).

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

68442270 is a wasteful number, since it uses less digits than its factorization.

68442270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175516.

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 68442270 is about 8272.9843466551. The cubic root of 68442270 is about 409.0484974663.

The spelling of 68442270 in words is "sixty-eight million, four hundred forty-two thousand, two hundred seventy".