68949418 has 8 divisors (see below), whose sum is σ = 103651812. Its totient is φ = 34398816.

The previous prime is 68949403. The next prime is 68949479. The reversal of 68949418 is 81494986.

It can be written as a sum of positive squares in 2 ways, for example, as 51451929 + 17497489 = 7173^2 + 4183^2 .

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

It is an unprimeable number.

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, 36805 + ... + 38632.

Almost surely, 2^68949418 is an apocalyptic number.

68949418 is a deficient number, since it is larger than the sum of its proper divisors (34702394).

68949418 is a wasteful number, since it uses less digits than its factorization.

68949418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75896.

The product of its digits is 497664, while the sum is 49.

The square root of 68949418 is about 8303.5786261106. The cubic root of 68949418 is about 410.0563436349.

The spelling of 68949418 in words is "sixty-eight million, nine hundred forty-nine thousand, four hundred eighteen".