67040306 has 8 divisors (see below), whose sum is σ = 100618284. Its totient is φ = 33500880.

The previous prime is 67040291. The next prime is 67040317. The reversal of 67040306 is 60304076.

It can be written as a sum of positive squares in 2 ways, for example, as 60202081 + 6838225 = 7759^2 + 2615^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4805 + ... + 12536.

Almost surely, 2^67040306 is an apocalyptic number.

67040306 is a deficient number, since it is larger than the sum of its proper divisors (33577978).

67040306 is a wasteful number, since it uses less digits than its factorization.

67040306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19276.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 67040306 is about 8187.8144825100. The cubic root of 67040306 is about 406.2362388711.

It can be divided in two parts, 6 and 7040306, that multiplied together give a triangular number (42241836 = T₉₁₉₁).

The spelling of 67040306 in words is "sixty-seven million, forty thousand, three hundred six".