67306240 has 36 divisors (see below), whose sum is σ = 161222544. Its totient is φ = 26921984.

The previous prime is 67306207. The next prime is 67306243. The reversal of 67306240 is 4260376.

It is a junction number, because it is equal to n+sod(n) for n = 67306199 and 67306208.

It is not an unprimeable number, because it can be changed into a prime (67306243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25012 + ... + 27571.

It is an arithmetic number, because the mean of its divisors is an integer number (4478404).

Almost surely, 2^67306240 is an apocalyptic number.

It is an amenable number.

67306240 is an abundant number, since it is smaller than the sum of its proper divisors (93916304).

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

67306240 is an equidigital number, since it uses as much as digits as its factorization.

67306240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52604 (or 52590 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 67306240 is about 8204.0380301410. The cubic root of 67306240 is about 406.7726798174.

The spelling of 67306240 in words is "sixty-seven million, three hundred six thousand, two hundred forty".