68417402 has 4 divisors (see below), whose sum is σ = 102626106. Its totient is φ = 34208700.

The previous prime is 68417399. The next prime is 68417407. The reversal of 68417402 is 20471486.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 64657681 + 3759721 = 8041^2 + 1939^2 .

It is not an unprimeable number, because it can be changed into a prime (68417407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17104349 + ... + 17104352.

Almost surely, 2^68417402 is an apocalyptic number.

68417402 is a deficient number, since it is larger than the sum of its proper divisors (34208704).

68417402 is a wasteful number, since it uses less digits than its factorization.

68417402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34208703.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 68417402 is about 8271.4812458229. The cubic root of 68417402 is about 408.9989498681.

Adding to 68417402 its reverse (20471486), we get a palindrome (88888888).

The spelling of 68417402 in words is "sixty-eight million, four hundred seventeen thousand, four hundred two".