220712072 has 24 divisors (see below), whose sum is σ = 481400910. Its totient is φ = 94590720.

The previous prime is 220712057. The next prime is 220712099. The reversal of 220712072 is 270217022.

It can be written as a sum of positive squares in only one way, i.e., 220641316 + 70756 = 14854^2 + 266^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 281129 + ... + 281912.

Almost surely, 2^220712072 is an apocalyptic number.

It is an amenable number.

220712072 is an abundant number, since it is smaller than the sum of its proper divisors (260688838).

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

220712072 is a wasteful number, since it uses less digits than its factorization.

220712072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563061 (or 563050 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 220712072 is about 14856.3815244494. The cubic root of 220712072 is about 604.3316819256.

Adding to 220712072 its reverse (270217022), we get a palindrome (490929094).

The spelling of 220712072 in words is "two hundred twenty million, seven hundred twelve thousand, seventy-two".