67208540 has 24 divisors (see below), whose sum is σ = 161300832. Its totient is φ = 23042880.

The previous prime is 67208521. The next prime is 67208551. The reversal of 67208540 is 4580276.

It is a junction number, because it is equal to n+sod(n) for n = 67208497 and 67208506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239891 + ... + 240170.

It is an arithmetic number, because the mean of its divisors is an integer number (6720868).

Almost surely, 2^67208540 is an apocalyptic number.

It is an amenable number.

67208540 is an abundant number, since it is smaller than the sum of its proper divisors (94092292).

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

67208540 is a wasteful number, since it uses less digits than its factorization.

67208540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480077 (or 480075 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 67208540 is about 8198.0814828837. The cubic root of 67208540 is about 406.5757642680.

The spelling of 67208540 in words is "sixty-seven million, two hundred eight thousand, five hundred forty".