220273439 has 4 divisors (see below), whose sum is σ = 221858280. Its totient is φ = 218688600.

The previous prime is 220273433. The next prime is 220273463. The reversal of 220273439 is 934372022.

It is a happy number.

220273439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 220273439 - 2¹⁶ = 220207903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220273433) 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, 792212 + ... + 792489.

It is an arithmetic number, because the mean of its divisors is an integer number (55464570).

Almost surely, 2^220273439 is an apocalyptic number.

220273439 is a deficient number, since it is larger than the sum of its proper divisors (1584841).

220273439 is a wasteful number, since it uses less digits than its factorization.

220273439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1584840.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 220273439 is about 14841.6117386219. The cubic root of 220273439 is about 603.9310761155.

The spelling of 220273439 in words is "two hundred twenty million, two hundred seventy-three thousand, four hundred thirty-nine".