68641338 has 64 divisors (see below), whose sum is σ = 154275840. Its totient is φ = 20256192.

The previous prime is 68641337. The next prime is 68641343. The reversal of 68641338 is 83314686.

It is a junction number, because it is equal to n+sod(n) for n = 68641296 and 68641305.

It is not an unprimeable number, because it can be changed into a prime (68641337) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122956 + ... + 123512.

It is an arithmetic number, because the mean of its divisors is an integer number (2410560).

Almost surely, 2^68641338 is an apocalyptic number.

68641338 is an abundant number, since it is smaller than the sum of its proper divisors (85634502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68641338 is a wasteful number, since it uses less digits than its factorization.

68641338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651.

The product of its digits is 82944, while the sum is 39.

The square root of 68641338 is about 8285.0068195506. The cubic root of 68641338 is about 409.4446934003. Note that the first 3 decimals are identical.

It can be divided in two parts, 686 and 41338, that added together give a palindrome (42024).

The spelling of 68641338 in words is "sixty-eight million, six hundred forty-one thousand, three hundred thirty-eight".