67428518 has 8 divisors (see below), whose sum is σ = 103609800. Its totient is φ = 32891920.

The previous prime is 67428499. The next prime is 67428521. The reversal of 67428518 is 81582476.

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

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 411068 + ... + 411231.

It is an arithmetic number, because the mean of its divisors is an integer number (12951225).

Almost surely, 2^67428518 is an apocalyptic number.

67428518 is a deficient number, since it is larger than the sum of its proper divisors (36181282).

67428518 is a wasteful number, since it uses less digits than its factorization.

67428518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822342.

The product of its digits is 107520, while the sum is 41.

The square root of 67428518 is about 8211.4869542611. The cubic root of 67428518 is about 407.0188643165.

It can be divided in two parts, 674 and 28518, that added together give a palindrome (29192).

The spelling of 67428518 in words is "sixty-seven million, four hundred twenty-eight thousand, five hundred eighteen".