220474 has 4 divisors (see below), whose sum is σ = 330714. Its totient is φ = 110236.

The previous prime is 220471. The next prime is 220511. The reversal of 220474 is 474022.

220474 is digitally balanced in base 3, 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, and also an emirpimes, since its reverse is a distinct semiprime: 474022 = 2 ⋅237011.

It can be written as a sum of positive squares in only one way, i.e., 127449 + 93025 = 357^2 + 305^2 .

It is not an unprimeable number, because it can be changed into a prime (220471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55117 + ... + 55120.

2²²⁰⁴⁷⁴ is an apocalyptic number.

220474 is a deficient number, since it is larger than the sum of its proper divisors (110240).

220474 is a wasteful number, since it uses less digits than its factorization.

220474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110239.

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 220474 is about 469.5465898077. The cubic root of 220474 is about 60.4114315453.

Adding to 220474 its reverse (474022), we get a palindrome (694496).

It can be divided in two parts, 22047 and 4, that multiplied together give a palindrome (88188).

The spelling of 220474 in words is "two hundred twenty thousand, four hundred seventy-four", and thus it is an iban number.