614220 has 48 divisors (see below), whose sum is σ = 1784160. Its totient is φ = 157696.

The previous prime is 614219. The next prime is 614267. The reversal of 614220 is 22416.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 614220.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 614220.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 1564 + ... + 1916.

It is an arithmetic number, because the mean of its divisors is an integer number (37170).

2⁶¹⁴²²⁰ is an apocalyptic number.

614220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 614220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (892080).

614220 is an abundant number, since it is smaller than the sum of its proper divisors (1169940).

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

614220 is a wasteful number, since it uses less digits than its factorization.

614220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 614220 is about 783.7218894480. The cubic root of 614220 is about 85.0043827037.

Adding to 614220 its reverse (22416), we get a palindrome (636636).

The spelling of 614220 in words is "six hundred fourteen thousand, two hundred twenty".