720465222 has 8 divisors (see below), whose sum is σ = 1440930456. Its totient is φ = 240155072.

The previous prime is 720465211. The next prime is 720465259. The reversal of 720465222 is 222564027.

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

720465222 is an admirable number.

It is a super-2 number, since 2×720465222² = 1038140272223018568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 720465222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60038763 + ... + 60038774.

It is an arithmetic number, because the mean of its divisors is an integer number (180116307).

Almost surely, 2^720465222 is an apocalyptic number.

720465222 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.

720465222 is a wasteful number, since it uses less digits than its factorization.

720465222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120077542.

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 720465222 is about 26841.4832302539. The cubic root of 720465222 is about 896.4739492378.

The spelling of 720465222 in words is "seven hundred twenty million, four hundred sixty-five thousand, two hundred twenty-two".