68226449 has 4 divisors (see below), whose sum is σ = 68315940. Its totient is φ = 68136960.

The previous prime is 68226407. The next prime is 68226461. The reversal of 68226449 is 94462286.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24930049 + 43296400 = 4993^2 + 6580^2 .

It is a cyclic number.

It is not a de Polignac number, because 68226449 - 2¹⁶ = 68160913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68226149) 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, 43592 + ... + 45129.

It is an arithmetic number, because the mean of its divisors is an integer number (17078985).

Almost surely, 2^68226449 is an apocalyptic number.

It is an amenable number.

68226449 is a deficient number, since it is larger than the sum of its proper divisors (89491).

68226449 is an equidigital number, since it uses as much as digits as its factorization.

68226449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89490.

The product of its digits is 165888, while the sum is 41.

The square root of 68226449 is about 8259.9303265827. The cubic root of 68226449 is about 408.6180899031.

The spelling of 68226449 in words is "sixty-eight million, two hundred twenty-six thousand, four hundred forty-nine".