68017402 has 8 divisors (see below), whose sum is σ = 102544596. Its totient is φ = 33835872.

The previous prime is 68017399. The next prime is 68017409. The reversal of 68017402 is 20471086.

It can be written as a sum of positive squares in 2 ways, for example, as 66765241 + 1252161 = 8171^2 + 1119^2 .

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 (68017409) 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, 85923 + ... + 86710.

Almost surely, 2^68017402 is an apocalyptic number.

68017402 is a deficient number, since it is larger than the sum of its proper divisors (34527194).

68017402 is a wasteful number, since it uses less digits than its factorization.

68017402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172832.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 68017402 is about 8247.2663349743. The cubic root of 68017402 is about 408.2003253407.

Adding to 68017402 its reverse (20471086), we get a palindrome (88488488).

The spelling of 68017402 in words is "sixty-eight million, seventeen thousand, four hundred two".