220938384 has 40 divisors (see below), whose sum is σ = 600799840. Its totient is φ = 69769728.

The previous prime is 220938379. The next prime is 220938413. The reversal of 220938384 is 483839022.

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, 120217 + ... + 122040.

It is an arithmetic number, because the mean of its divisors is an integer number (15019996).

Almost surely, 2^220938384 is an apocalyptic number.

220938384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

220938384 is an abundant number, since it is smaller than the sum of its proper divisors (379861456).

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

220938384 is a wasteful number, since it uses less digits than its factorization.

220938384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242287 (or 242281 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 220938384 is about 14863.9962325076. The cubic root of 220938384 is about 604.5381663152.

The spelling of 220938384 in words is "two hundred twenty million, nine hundred thirty-eight thousand, three hundred eighty-four".