220738 has 8 divisors (see below), whose sum is σ = 378432. Its totient is φ = 94596.

The previous prime is 220721. The next prime is 220747. The reversal of 220738 is 837022.

It is a happy number.

220738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7870 + ... + 7897.

It is an arithmetic number, because the mean of its divisors is an integer number (47304).

2²²⁰⁷³⁸ is an apocalyptic number.

220738 is a deficient number, since it is larger than the sum of its proper divisors (157694).

220738 is a wasteful number, since it uses less digits than its factorization.

220738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15776.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 220738 is about 469.8276279658. The cubic root of 220738 is about 60.4355345483.

The spelling of 220738 in words is "two hundred twenty thousand, seven hundred thirty-eight".