220495 has 16 divisors (see below), whose sum is σ = 305280. Its totient is φ = 151200.

The previous prime is 220471. The next prime is 220511. The reversal of 220495 is 594022.

It is a happy number.

It is not a de Polignac number, because 220495 - 2⁹ = 219983 is a prime.

220495 is a modest number, since divided by 495 gives 220 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 940 + ... + 1150.

It is an arithmetic number, because the mean of its divisors is an integer number (19080).

2²²⁰⁴⁹⁵ is an apocalyptic number.

220495 is a deficient number, since it is larger than the sum of its proper divisors (84785).

220495 is a wasteful number, since it uses less digits than its factorization.

220495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 220495 is about 469.5689512734. The cubic root of 220495 is about 60.4133495338.

It can be divided in two parts, 220 and 495, that multiplied together give a square (108900 = 330²).

The spelling of 220495 in words is "two hundred twenty thousand, four hundred ninety-five".