472221718 has 16 divisors (see below), whose sum is σ = 717171840. Its totient is φ = 233171136.

The previous prime is 472221683. The next prime is 472221727. The reversal of 472221718 is 817122274.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278080 + ... + 279772.

It is an arithmetic number, because the mean of its divisors is an integer number (44823240).

Almost surely, 2^472221718 is an apocalyptic number.

472221718 is a deficient number, since it is larger than the sum of its proper divisors (244950122).

472221718 is a wasteful number, since it uses less digits than its factorization.

472221718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3351.

The product of its digits is 12544, while the sum is 34.

The square root of 472221718 is about 21730.6630823820. The cubic root of 472221718 is about 778.7211775620.

The spelling of 472221718 in words is "four hundred seventy-two million, two hundred twenty-one thousand, seven hundred eighteen".