67481378 has 8 divisors (see below), whose sum is σ = 103375872. Its totient is φ = 33022756.

The previous prime is 67481371. The next prime is 67481413. The reversal of 67481378 is 87318476.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (67481371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 358850 + ... + 359037.

It is an arithmetic number, because the mean of its divisors is an integer number (12921984).

Almost surely, 2^67481378 is an apocalyptic number.

67481378 is a deficient number, since it is larger than the sum of its proper divisors (35894494).

67481378 is a wasteful number, since it uses less digits than its factorization.

67481378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717936.

The product of its digits is 225792, while the sum is 44.

The square root of 67481378 is about 8214.7049855731. The cubic root of 67481378 is about 407.1251961678.

The spelling of 67481378 in words is "sixty-seven million, four hundred eighty-one thousand, three hundred seventy-eight".