67814128 has 20 divisors (see below), whose sum is σ = 133618680. Its totient is φ = 33331904.

The previous prime is 67814113. The next prime is 67814129. The reversal of 67814128 is 82141876.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67814129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34975 + ... + 36862.

It is an arithmetic number, because the mean of its divisors is an integer number (6680934).

Almost surely, 2^67814128 is an apocalyptic number.

It is an amenable number.

67814128 is a deficient number, since it is larger than the sum of its proper divisors (65804552).

67814128 is a wasteful number, since it uses less digits than its factorization.

67814128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71904 (or 71898 counting only the distinct ones).

The product of its digits is 21504, while the sum is 37.

The square root of 67814128 is about 8234.9333937804. The cubic root of 67814128 is about 407.7932760265.

The spelling of 67814128 in words is "sixty-seven million, eight hundred fourteen thousand, one hundred twenty-eight".