220011984 has 40 divisors (see below), whose sum is σ = 631517120. Its totient is φ = 73337184.

The previous prime is 220011973. The next prime is 220012007. The reversal of 220011984 is 489110022.

220011984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254212 + ... + 255075.

It is an arithmetic number, because the mean of its divisors is an integer number (15787928).

Almost surely, 2^220011984 is an apocalyptic number.

220011984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

220011984 is an abundant number, since it is smaller than the sum of its proper divisors (411505136).

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

220011984 is a wasteful number, since it uses less digits than its factorization.

220011984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509304 (or 509292 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 220011984 is about 14832.8009492476. The cubic root of 220011984 is about 603.6920348656.

The spelling of 220011984 in words is "two hundred twenty million, eleven thousand, nine hundred eighty-four".