67740608 has 42 divisors (see below), whose sum is σ = 145581624. Its totient is φ = 31259904.

The previous prime is 67740601. The next prime is 67740613. The reversal of 67740608 is 80604776.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67740601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7685 + ... + 13947.

Almost surely, 2^67740608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67740608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72790812).

67740608 is an abundant number, since it is smaller than the sum of its proper divisors (77841016).

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

67740608 is a wasteful number, since it uses less digits than its factorization.

67740608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6301 (or 6278 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 67740608 is about 8230.4682734338. The cubic root of 67740608 is about 407.6458544219.

The spelling of 67740608 in words is "sixty-seven million, seven hundred forty thousand, six hundred eight".