68448842 has 16 divisors (see below), whose sum is σ = 128008512. Its totient is φ = 26668320.

The previous prime is 68448841. The next prime is 68448847. The reversal of 68448842 is 24884486.

It is a happy number.

It is a super-2 number, since 2×68448842² = 9370487942281928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68448793 and 68448802.

It is not an unprimeable number, because it can be changed into a prime (68448841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222083 + ... + 222390.

It is an arithmetic number, because the mean of its divisors is an integer number (8000532).

Almost surely, 2^68448842 is an apocalyptic number.

68448842 is a deficient number, since it is larger than the sum of its proper divisors (59559670).

68448842 is a wasteful number, since it uses less digits than its factorization.

68448842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444493.

The product of its digits is 393216, while the sum is 44.

The square root of 68448842 is about 8273.3815335690. The cubic root of 68448842 is about 409.0615896713.

The spelling of 68448842 in words is "sixty-eight million, four hundred forty-eight thousand, eight hundred forty-two".