220426 has 8 divisors (see below), whose sum is σ = 332640. Its totient is φ = 109548.

The previous prime is 220421. The next prime is 220447. The reversal of 220426 is 624022.

220426 is digitally balanced in base 2 and base 3, because in such bases 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 not an unprimeable number, because it can be changed into a prime (220421) 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, 435 + ... + 793.

It is an arithmetic number, because the mean of its divisors is an integer number (41580).

2²²⁰⁴²⁶ is an apocalyptic number.

220426 is a deficient number, since it is larger than the sum of its proper divisors (112214).

220426 is a wasteful number, since it uses less digits than its factorization.

220426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 220426 is about 469.4954738866. The cubic root of 220426 is about 60.4070471142.

Adding to 220426 its reverse (624022), we get a palindrome (844448).

It can be divided in two parts, 220 and 426, that added together give a palindrome (646).

The spelling of 220426 in words is "two hundred twenty thousand, four hundred twenty-six".