68223318 has 32 divisors (see below), whose sum is σ = 139682400. Its totient is φ = 22208256.

The previous prime is 68223277. The next prime is 68223347. The reversal of 68223318 is 81332286.

It is a super-2 number, since 2×68223318² = 9308842237858248, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47028 + ... + 48456.

It is an arithmetic number, because the mean of its divisors is an integer number (4365075).

Almost surely, 2^68223318 is an apocalyptic number.

68223318 is an abundant number, since it is smaller than the sum of its proper divisors (71459082).

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

68223318 is a wasteful number, since it uses less digits than its factorization.

68223318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616.

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

The square root of 68223318 is about 8259.7407949645. The cubic root of 68223318 is about 408.6118391365.

The spelling of 68223318 in words is "sixty-eight million, two hundred twenty-three thousand, three hundred eighteen".