68222409 has 8 divisors (see below), whose sum is σ = 92244672. Its totient is φ = 44840880.

The previous prime is 68222321. The next prime is 68222417. The reversal of 68222409 is 90422286.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68222409 - 2¹⁷ = 68091337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68222409.

It is not an unprimeable number, because it can be changed into a prime (68222489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159934 + ... + 160359.

It is an arithmetic number, because the mean of its divisors is an integer number (11530584).

Almost surely, 2^68222409 is an apocalyptic number.

It is an amenable number.

68222409 is a deficient number, since it is larger than the sum of its proper divisors (24022263).

68222409 is a wasteful number, since it uses less digits than its factorization.

68222409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320367.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 68222409 is about 8259.6857688413. The cubic root of 68222409 is about 408.6100243620.

The spelling of 68222409 in words is "sixty-eight million, two hundred twenty-two thousand, four hundred nine".