68474045 has 16 divisors (see below), whose sum is σ = 87784560. Its totient is φ = 51093504.

The previous prime is 68474027. The next prime is 68474051. The reversal of 68474045 is 54047486.

It can be written as a sum of positive squares in 8 ways, for example, as 2247001 + 66227044 = 1499^2 + 8138^2 .

It is a cyclic number.

It is not a de Polignac number, because 68474045 - 2⁶ = 68473981 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 6041 + ... + 13169.

It is an arithmetic number, because the mean of its divisors is an integer number (5486535).

Almost surely, 2^68474045 is an apocalyptic number.

It is an amenable number.

68474045 is a deficient number, since it is larger than the sum of its proper divisors (19310515).

68474045 is a wasteful number, since it uses less digits than its factorization.

68474045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7264.

The product of its (nonzero) digits is 107520, while the sum is 38.

The square root of 68474045 is about 8274.9045311713. The cubic root of 68474045 is about 409.1117892747. Note that the first 3 decimals are identical.

The spelling of 68474045 in words is "sixty-eight million, four hundred seventy-four thousand, forty-five".