68472218 has 8 divisors (see below), whose sum is σ = 102754548. Its totient is φ = 34220704.

The previous prime is 68472199. The next prime is 68472227. The reversal of 68472218 is 81227486.

It can be written as a sum of positive squares in 2 ways, for example, as 64850809 + 3621409 = 8053^2 + 1903^2 .

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

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, 971 + ... + 11742.

Almost surely, 2^68472218 is an apocalyptic number.

68472218 is a deficient number, since it is larger than the sum of its proper divisors (34282330).

68472218 is a wasteful number, since it uses less digits than its factorization.

68472218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15408.

The product of its digits is 43008, while the sum is 38.

The square root of 68472218 is about 8274.7941364121. The cubic root of 68472218 is about 409.1081506508.

The spelling of 68472218 in words is "sixty-eight million, four hundred seventy-two thousand, two hundred eighteen".