220734 has 12 divisors (see below), whose sum is σ = 478296. Its totient is φ = 73572.

The previous prime is 220721. The next prime is 220747. The reversal of 220734 is 437022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (220721) and next prime (220747).

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 12263 = 220734 / (2 + 2 + 0 + 7 + 3 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6114 + ... + 6149.

It is an arithmetic number, because the mean of its divisors is an integer number (39858).

2²²⁰⁷³⁴ is an apocalyptic number.

220734 is an abundant number, since it is smaller than the sum of its proper divisors (257562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220734 is a wasteful number, since it uses less digits than its factorization.

220734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12271 (or 12268 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 220734 is about 469.8233710662. The cubic root of 220734 is about 60.4351694947.

Adding to 220734 its reverse (437022), we get a palindrome (657756).

It can be divided in two parts, 2 and 20734, that added together give a 4-th power (20736 = 12⁴).

The spelling of 220734 in words is "two hundred twenty thousand, seven hundred thirty-four".