68417444 has 6 divisors (see below), whose sum is σ = 119730534. Its totient is φ = 34208720.

The previous prime is 68417443. The next prime is 68417491. The reversal of 68417444 is 44471486.

It can be written as a sum of positive squares in only one way, i.e., 66227044 + 2190400 = 8138^2 + 1480^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68417398 and 68417407.

It is not an unprimeable number, because it can be changed into a prime (68417443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8552177 + ... + 8552184.

It is an arithmetic number, because the mean of its divisors is an integer number (19955089).

Almost surely, 2^68417444 is an apocalyptic number.

It is an amenable number.

68417444 is a deficient number, since it is larger than the sum of its proper divisors (51313090).

68417444 is a wasteful number, since it uses less digits than its factorization.

68417444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17104365 (or 17104363 counting only the distinct ones).

The product of its digits is 86016, while the sum is 38.

The square root of 68417444 is about 8271.4837846664. The cubic root of 68417444 is about 408.9990335600. Note that the first 3 decimals are identical.

The spelling of 68417444 in words is "sixty-eight million, four hundred seventeen thousand, four hundred forty-four".