67938720 has 48 divisors (see below), whose sum is σ = 214008480. Its totient is φ = 18116864.

The previous prime is 67938709. The next prime is 67938751. The reversal of 67938720 is 2783976.

It is a tau number, because it is divible by the number of its divisors (48).

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, 70290 + ... + 71249.

It is an arithmetic number, because the mean of its divisors is an integer number (4458510).

Almost surely, 2^67938720 is an apocalyptic number.

67938720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

67938720 is an abundant number, since it is smaller than the sum of its proper divisors (146069760).

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

67938720 is a wasteful number, since it uses less digits than its factorization.

67938720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141557 (or 141549 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 67938720 is about 8242.4947679692. The cubic root of 67938720 is about 408.0428636243.

The spelling of 67938720 in words is "sixty-seven million, nine hundred thirty-eight thousand, seven hundred twenty".