220144830 has 32 divisors (see below), whose sum is σ = 556156800. Its totient is φ = 55615392.

The previous prime is 220144819. The next prime is 220144843. The reversal of 220144830 is 38441022.

It is a self number, because there is not a number n which added to its sum of digits gives 220144830.

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, 192540 + ... + 193679.

It is an arithmetic number, because the mean of its divisors is an integer number (17379900).

Almost surely, 2^220144830 is an apocalyptic number.

220144830 is an abundant number, since it is smaller than the sum of its proper divisors (336011970).

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

220144830 is a wasteful number, since it uses less digits than its factorization.

220144830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386248.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 220144830 is about 14837.2783892465. The cubic root of 220144830 is about 603.8135160299.

Adding to 220144830 its reverse (38441022), we get a palindrome (258585852).

The spelling of 220144830 in words is "two hundred twenty million, one hundred forty-four thousand, eight hundred thirty".