220720002 has 8 divisors (see below), whose sum is σ = 441440016. Its totient is φ = 73573332.

The previous prime is 220720001. The next prime is 220720007. The reversal of 220720002 is 200027022.

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

220720002 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (220720001) 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, 18393328 + ... + 18393339.

It is an arithmetic number, because the mean of its divisors is an integer number (55180002).

Almost surely, 2^220720002 is an apocalyptic number.

220720002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

220720002 is a wasteful number, since it uses less digits than its factorization.

220720002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36786672.

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 220720002 is about 14856.6484107284. The cubic root of 220720002 is about 604.3389195494.

Adding to 220720002 its reverse (200027022), we get a palindrome (420747024).

The spelling of 220720002 in words is "two hundred twenty million, seven hundred twenty thousand, two".