220242438 has 24 divisors (see below), whose sum is σ = 513899568. Its totient is φ = 67766832.

The previous prime is 220242403. The next prime is 220242479. The reversal of 220242438 is 834242022.

220242438 is a `hidden beast` number, since 2 + 202 + 424 + 38 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 470370 + ... + 470837.

It is an arithmetic number, because the mean of its divisors is an integer number (21412482).

Almost surely, 2^220242438 is an apocalyptic number.

220242438 is an abundant number, since it is smaller than the sum of its proper divisors (293657130).

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

220242438 is a wasteful number, since it uses less digits than its factorization.

220242438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941228 (or 941225 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 220242438 is about 14840.5673072157. The cubic root of 220242438 is about 603.9027426257.

The spelling of 220242438 in words is "two hundred twenty million, two hundred forty-two thousand, four hundred thirty-eight".