220231838 has 16 divisors (see below), whose sum is σ = 355517424. Its totient is φ = 101938560.

The previous prime is 220231799. The next prime is 220231861. The reversal of 220231838 is 838132022.

220231838 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 220231838.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51020 + ... + 55167.

It is an arithmetic number, because the mean of its divisors is an integer number (22219839).

Almost surely, 2^220231838 is an apocalyptic number.

220231838 is a deficient number, since it is larger than the sum of its proper divisors (135285586).

220231838 is a wasteful number, since it uses less digits than its factorization.

220231838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106267.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 220231838 is about 14840.2101737138. The cubic root of 220231838 is about 603.8930541027.

The spelling of 220231838 in words is "two hundred twenty million, two hundred thirty-one thousand, eight hundred thirty-eight".