220521796 has 12 divisors (see below), whose sum is σ = 420996240. Its totient is φ = 100237160.

The previous prime is 220521793. The next prime is 220521803. The reversal of 220521796 is 697125022.

It is a super-2 number, since 2×220521796² = 97259725022131232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220521793) 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, 2505886 + ... + 2505973.

It is an arithmetic number, because the mean of its divisors is an integer number (35083020).

Almost surely, 2^220521796 is an apocalyptic number.

It is an amenable number.

220521796 is a deficient number, since it is larger than the sum of its proper divisors (200474444).

220521796 is a wasteful number, since it uses less digits than its factorization.

220521796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5011874 (or 5011872 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 220521796 is about 14849.9762962774. The cubic root of 220521796 is about 604.1579671032.

The spelling of 220521796 in words is "two hundred twenty million, five hundred twenty-one thousand, seven hundred ninety-six".