220719996 has 72 divisors (see below), whose sum is σ = 645765120. Its totient is φ = 62258976.

The previous prime is 220719977. The next prime is 220719997. The reversal of 220719996 is 699917022.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220719997) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14365 + ... + 25451.

It is an arithmetic number, because the mean of its divisors is an integer number (8968960).

Almost surely, 2^220719996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220719996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322882560).

220719996 is an abundant number, since it is smaller than the sum of its proper divisors (425045124).

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

220719996 is a wasteful number, since it uses less digits than its factorization.

220719996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11183 (or 11178 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 220719996 is about 14856.6482087986. The cubic root of 220719996 is about 604.3389140734.

The spelling of 220719996 in words is "two hundred twenty million, seven hundred nineteen thousand, nine hundred ninety-six".