67845340 has 24 divisors (see below), whose sum is σ = 142696512. Its totient is φ = 27096000.

The previous prime is 67845311. The next prime is 67845361. The reversal of 67845340 is 4354876.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 67845340.

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 7 ways as a sum of consecutive naturals, for example, 12762 + ... + 17278.

It is an arithmetic number, because the mean of its divisors is an integer number (5945688).

Almost surely, 2^67845340 is an apocalyptic number.

It is an amenable number.

67845340 is an abundant number, since it is smaller than the sum of its proper divisors (74851172).

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

67845340 is a wasteful number, since it uses less digits than its factorization.

67845340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5277 (or 5275 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 67845340 is about 8236.8282730672. The cubic root of 67845340 is about 407.8558298133.

The spelling of 67845340 in words is "sixty-seven million, eight hundred forty-five thousand, three hundred forty".